Try to start the game with all my mods installed, including tech reborn and reborn core, game crashes with the below crash report, i also tried removing all my mods except tech reborn and reborn core and i get another crash on start, except this one says its an unexpected crash and doesnt give a report, i have this problem with the last version as well.

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 8/21/19 10:45 PM
Description: Initializing game

java.lang.RuntimeException: Could not execute entrypoint stage 'client' due to errors!
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:45)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient.start(EntrypointClient.java:35)
at net.minecraft.class_310.method_1503(class_310.java)
at net.minecraft.class_310.method_1514(class_310.java:394)
at net.minecraft.client.main.Main.main(Main.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:129)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)
Suppressed: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/event/client/ItemTooltipCallback
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at net.fabricmc.loader.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:155)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at techreborn.TechRebornClient.onInitializeClient(TechRebornClient.java:113)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient$$Lambda$1786/1489152144.accept(Unknown Source)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.lambda$logErrors$0(EntrypointUtils.java:38)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils$$Lambda$1490/107733226.accept(Unknown Source)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:36)
... 11 more
Caused by: java.lang.ClassNotFoundException: net.fabricmc.fabric.api.event.client.ItemTooltipCallback
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at net.fabricmc.loader.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 22 more

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Client thread
Stacktrace:
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:45)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient.start(EntrypointClient.java:35)
at net.minecraft.class_310.method_1503(class_310.java)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.class_310.method_1514(class_310.java:394)
at net.minecraft.client.main.Main.main(Main.java:155)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:129)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)

-- System Details --
Details:
Minecraft Version: 1.14.4
Minecraft Version ID: 1.14.4
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 3417657120 bytes (3259 MB) / 4328521728 bytes (4128 MB) up to 6442450944 bytes (6144 MB)
CPUs: 12
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx6G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Fabric Mods:
appleskin: AppleSkin 1.0.7
artifice: Artifice 0.3.3
autoconfig1: Auto Config v1 1.2.0+mc1.14.4
autofish: Autofish 0.8.4
beachslimes: Beach Slimes 1.3.0+mc1.14.4
blue_endless_jankson: jankson 1.1.2
bluepower: BluePower 1.0.3
cloth: Cloth Events 0.3.1+build.23
cloth-config: Cloth Config 0.2.1+build.14
cloth-config2: Cloth Config v2 0.2.0
com_typesafe_config: config 1.3.1
cursedchests: CursedChests 2.3.22
disenchanting: Disenchanting 0.8.1
durabilityviewer: Giselbaers Durability Viewer 1.14-fabric0.2.7-1.5
easyexcavate: Easy Excavate 1.5.1
fabric: Fabric API 0.3.0+build.200
fabric-api-base: fabric-api-base 0.1.0+59147463
fabric-biomes-v1: fabric-biomes-v1 0.1.0+896c7fbb42
fabric-commands-v0: fabric-commands-v0 0.1.1+25fd0c5242
fabric-containers-v0: fabric-containers-v0 0.1.2+25fd0c5242
fabric-content-registries-v0: fabric-content-registries-v0 0.1.1+05f11b7542
fabric-crash-report-info-v1: fabric-crash-report-info-v1 0.1.0+5914746342
fabric-events-interaction-v0: fabric-events-interaction-v0 0.1.0+ea100f6142
fabric-events-lifecycle-v0: fabric-events-lifecycle-v0 0.1.0+5914746342
fabric-furnaces: Fabric Furnaces 1.1.7
fabric-item-groups-v0: fabric-item-groups-v0 0.1.0+1e69a0a542
fabric-keybindings-v0: fabric-keybindings-v0 0.1.1+7dfef87c42
fabric-language-kotlin: Fabric Language Kotlin 1.3.40+build.1
fabric-loot-tables-v1: fabric-loot-tables-v1 0.1.0+43028fa642
fabric-mining-levels-v0: fabric-mining-levels-v0 0.1.0+ab421b9c42
fabric-models-v0: fabric-models-v0 0.1.0+5914746342
fabric-networking-blockentity-v0: fabric-networking-blockentity-v0 0.1.1+25fd0c5242
fabric-networking-v0: fabric-networking-v0 0.1.2+200eb5c2
fabric-object-builders-v0: fabric-object-builders-v0 0.1.1+592d1d2242
fabric-registry-sync-v0: fabric-registry-sync-v0 0.2.2+ea100f6142
fabric-renderer-api-v1: fabric-renderer-api-v1 0.1.1+9486cfbf42
fabric-renderer-indigo: fabric-renderer-indigo 0.1.9+9486cfbf42
fabric-rendering-data-attachment-v1: fabric-rendering-data-attachment-v1 0.1.0+02a46d5b42
fabric-rendering-fluids-v1: fabric-rendering-fluids-v1 0.1.0+dc4c57c242
fabric-rendering-v0: fabric-rendering-v0 0.1.1+6dad974e42
fabric-resource-loader-v0: fabric-resource-loader-v0 0.1.1+59147463
fabric-tag-extensions-v0: fabric-tag-extensions-v0 0.1.1+c189dc5c42
fabric-textures-v0: fabric-textures-v0 0.1.4+792c1c3542
fabricloader: Fabric Loader 0.4.8+build.159
gbfabrictools: GBfabrictools 1.0.0
glassdoor: Glass Doors 1.2.1
harvest: Harvest 1.0.4
instantlava: InstantLava 1.0.1
jankson: Jankson 1.0.0+j1.1.2
leaf-decay: Leaf Decay 1.0.3
libblockattributes_core: LibBlockAttributes (Core) 0.4.9
libblockattributes_items: LibBlockAttributes (Items) 0.4.9
libcd: LibCapableData 1.2.1+1.14.3
libgui: LibGui 1.2.5-b
malilib: MaLiLib 0.10.0-dev.20
mbackpacks: Mpcs' Backpacks 1.1.4
mm: Manningham Mills 1.6
modmenu: Mod Menu 1.6.3+build.101
moreberries: More Berries 1.2.1
net_fabricmc_stitch: stitch 0.2.1.61
netherthings: Nether Things 1.1.2.1
optifabric: Optifabric 0.4.3
org_jetbrains_annotations: annotations 16.0.3
org_jetbrains_kotlin_kotlin-reflect: kotlin-reflect 1.3.40
org_jetbrains_kotlin_kotlin-stdlib: kotlin-stdlib 1.3.40
org_jetbrains_kotlin_kotlin-stdlib-jdk8: kotlin-stdlib-jdk8 1.3.40
org_jetbrains_kotlinx_kotlinx-coroutines-core: kotlinx-coroutines-core 1.2.2
org_jetbrains_kotlinx_kotlinx-coroutines-jdk8: kotlinx-coroutines-jdk8 1.2.2
org_slf4j_slf4j-api: slf4j-api 1.7.26
org_slf4j_slf4j-simple: slf4j-simple 1.7.26
org_spongepowered_configurate-core: configurate-core 3.6
org_spongepowered_configurate-hocon: configurate-hocon 3.6
org_zeroturnaround_zt-zip: zt-zip 1.13
reborncore: Reborn Core 4.0.12.146
roughlyenoughitems: Roughly Enough Items 2.9.7+build.142
silk: Silk API 1.2.4-43
simpleteleporters: Simple Teleporters 2.1.0
sonyikaarftl: Advanced Rotten Flesh to Leather 1.4.4
stockpile: Stockpile 1.0.9+1.14.4
superores: Super Ores 2.0.1
techreborn: Tech Reborn 3.0.10.184
vanilla-hammers: Vanilla Hammers 1.4.2
vanilladeathchest: VanillaDeathChest ${version}
voxelmap: VoxelMap 1.9.13
waila: Hwyla 1.9.17
Launched Version: fabric-loader-0.4.8+build.159-1.14.4
LWJGL: 3.2.2 build 10
OpenGL: NO CONTEXT
GL Caps:
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
Resource Packs: ERROR NullPointerException: null
Current Language: ERROR NullPointerException: null
CPU:

Update fabric api.