CITResewn-0.8.1.jar
I noticed 1 moment that this mod does not show renamed items that use ~ (tilde)
Examples:
NeadApTar~
SilinGo~
etc

https://www.curseforge.com/minecraft/texture-packs/subshield-totems/files - any of the [nb] files. v1.8.2 (last)

In my case, these are totems

I'll need the pack and your logs

Close completely and launch the game.

If the pack is not enabled, enable it.

Go to the game's folder and upload .minecraft/logs/latest.log

and your logs

and where can I find them? since I am still very weak in these matters

[23:01:17] [Worker-Main-10/ERROR]: Non [a-z0-9/._-] character in path of location: minecraft:optifine/cit/totems/6sixchazek6six[nb]/6sixchazek6six[nb]totem.properties
etc
[a-z0-9/.-] =(

The [ and ] in the names of the folders/files are breaking pack format.
More info available here:
https://citresewn.readthedocs.io/usage/help/
https://citresewn.readthedocs.io/usage/config/

Question. If 1 resource pack contains both / optifine / and / citresewn / folders, will this resource pack conflict?

If it has the duplicate properties it might, but just having both optifine and citresewn should work fine.

Thank you.