Hi there, I found your mod incompatible with Superaxes. Immersive Portal mod will stop Superaxes to chop down the whole tree, and the console says:
[20:31:48] [Thread-178/INFO]: [STDERR]: java.lang.IllegalArgumentException: The validated expression is false [20:31:48] [Thread-178/INFO]: [STDERR]: at org.apache.commons.lang3.Validate.isTrue(Validate.java:183) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.qouteall.immersive_portals.network.CommonNetwork.withForceRedirect(CommonNetwork.java:24) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3898$class_3208.updateEntityTrackingStatus(class_3898.java:1956) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3898$class_3208.method_18729(class_3898.java:1912) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3898.method_18701(class_3898.java:1020) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3215.method_18755(class_3215.java:477) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3218.method_18778(class_3218.java:933) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3218.method_14175(class_3218.java:835) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_3218.method_8649(class_3218.java:765) [20:31:48] [Thread-178/INFO]: [STDERR]: at net.minecraft.class_1264.method_5449(class_1264.java:52) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.github.levoment.superaxes.Items.SuperAxeItem.lambda$mineBlockWithLootContext$2(SuperAxeItem.java:96) [20:31:48] [Thread-178/INFO]: [STDERR]: at java.util.ArrayList.forEach(ArrayList.java:1259) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.github.levoment.superaxes.Items.SuperAxeItem.mineBlockWithLootContext(SuperAxeItem.java:94) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.github.levoment.superaxes.TreeChopper.breakLogs(TreeChopper.java:286) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.github.levoment.superaxes.TreeChopper.parallelTraverseTreeAndBreakBlocks(TreeChopper.java:221) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.github.levoment.superaxes.TreeChopper.cutTree(TreeChopper.java:66) [20:31:48] [Thread-178/INFO]: [STDERR]: at com.github.levoment.superaxes.Items.SuperAxeItem.lambda$canMine$0(SuperAxeItem.java:59) [20:31:48] [Thread-178/INFO]: [STDERR]: at java.lang.Thread.run(Thread.java:748)

I have reported this issue to the author of Superaxes, but I found he has deleted this project on CurseForge and I'm afraid he is no longer maintain this project, so I came here to ask you for help...

Seems that Superaxes tries to invoke spawning an item entity in a non-server thread.
Even without Immersive Portals this operation of Superaxes may cause random concurrency issues. Immersive Portals just did the thread check.