Hello, kind people. I really want these mods and I'm sick and tired of random troubleshooting and not knowing what to do. This is the error message after merging the mods:

Error [content0]game\gameplay\alchemy\alchemymanager.ws(196): Could not find function 'GetUnusedMutagensCount'
Error [content0]game\gameplay\alchemy\alchemymanager.ws(270): Could not find function 'RemoveUnusedMutagensCount'
Error [mod_showkillxp]game\npc\npc.ws(584): Could not find function 'GetPlayerMaxLevel'
Error [mod_showkillxp]game\npc\npc.ws(586): Could not find function 'GetPlayerMaxLevel'
Error [mod_showkillxp]game\npc\npc.ws(1965): Could not find function 'GetPlayerMaxLevel'
Error [mod_showkillxp]game\npc\npc.ws(1967): Could not find function 'GetPlayerMaxLevel'
Error [content0]game\vehicles\horse\horsecomponent.ws(189): Function 'GetCategoryDefaultItem' does not take 1 param(s)
Error [modcustomlocalizationfix]game\gui\hud\modules\hudmoduleradialmenu.ws(619): Could not find function 'ShouldUseInfiniteWaterBolts'
Error [modcustomlocalizationfix]game\gui\menus\charactermenu.ws(253): Could not find function 'GetFirstUnusedMutagenByName'
Error [modcustomlocalizationfix]game\gui\menus\charactermenu.ws(708): Could not find function 'GetUnusedMutagensCount'
Error [modcustomlocalizationfix]game\gui\menus\charactermenu.ws(721): Could not find function 'GetUnusedMutagensCount'
Error [modcustomlocalizationfix]game\gui\menus\charactermenu.ws(734): Could not find function 'GetUnusedMutagensCount'
Error [modcustomlocalizationfix]game\gui\menus\charactermenu.ws(1093): Could not find function 'MoveMutagenToSlot'
Error [modcustomlocalizationfix]game\gui\menus\listbasemenu.ws(186): Could not find function 'GetUnusedMutagensCount'
Error [modcustomlocalizationfix]game\gui\menus\alchemymenu.ws(62): Could not find function 'GetAlchemyFilters'
Error [modcustomlocalizationfix]game\gui\menus\alchemymenu.ws(126): Could not find function 'SetAlchemyFilters'
Error [modcustomlocalizationfix]game\gui\menus\alchemymenu.ws(189): Could not find function 'AddExpandedAlchemyCategory'
Error [modcustomlocalizationfix]game\gui\menus\alchemymenu.ws(193): Could not find function 'RemoveExpandedAlchemyCategory'
Error [modcustomlocalizationfix]game\gui\menus\alchemymenu.ws(315): Could not find function 'GetExpandedAlchemyCategories'
Error [modcustomlocalizationfix]game\gui\menus\craftingmenu.ws(103): Could not find function 'GetCraftingFilters'
Error [modcustomlocalizationfix]game\gui\menus\craftingmenu.ws(170): Could not find function 'SetCraftingFilters'
Error [modcustomlocalizationfix]game\gui\menus\craftingmenu.ws(266): Could not find function 'AddExpandedCraftingCategory'
Error [modcustomlocalizationfix]game\gui\menus\craftingmenu.ws(270): Could not find function 'RemoveExpandedCraftingCategory'
Error [modcustomlocalizationfix]game\gui\menus\craftingmenu.ws(478): Could not find function 'GetExpandedCraftingCategories'
Error [content0]game\gui\menus\glossarybestiarymenu.ws(103): Could not find function 'AddExpandedBestiaryCategory'
Error [content0]game\gui\menus\glossarybestiarymenu.ws(107): Could not find function 'RemoveExpandedBestiaryCategory'
Error [content0]game\gui\menus\glossarybestiarymenu.ws(162): Could not find function 'GetExpandedBestiaryCategories'
Error [modactiveperks]game\gameplay\ability\playerabilitymanager.ws(651): Function 'SetItemStackable' does not take 2 param(s)
Error [modactiveperks]game\gameplay\ability\playerabilitymanager.ws(4083): Could not find function 'RemoveUnusedMutagensCountById'

Warning [content0]engine\environment.ws(30): Global native function 'EnableDebugOverlayFilter' was not exported from C++ code.
Warning [content0]engine\environment.ws(32): Global native function 'EnableDebugPostProcess' was not exported from C++ code.
Warning [content0]engine\showflags.ws(11): Global native function 'DebugSetEShowFlag' was not exported from C++ code.

Thank you for any help.

PS. None of the mods shown were required to merge.

Update:
Sorry for bothering anyone.
After deciding on one mod that i don't absolutely need, I've fixed this stupid problem.