I was about to upload a log as well, but this covers it

same issue same log here it is just in case

https://pastebin.com/XPUy3dZd

As of 10th June patch

MOD_CRITICAL_ERROR: [Alpha] Laser Welders Reloaded, in file: X:\Steam\steamapps\workshop\content\244850\1694721473\Data\CubeBlocks.sbc
MOD PARTIALLY SKIPPED, LOADED ONLY 4/6 PHASES, Following Error occured:
The given key was not present in the dictionary.
mscorlib
at System.ThrowHelper.ThrowKeyNotFoundException()
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at Sandbox.Definitions.MyDefinitionManager.GetComponentDefinition(MyDefinitionId id)
at Sandbox.Definitions.MyCubeBlockDefinition.Init(MyObjectBuilder_DefinitionBase builder)
at Sandbox.Definitions.MyShipToolDefinition.Init(MyObjectBuilder_DefinitionBase builder)
at Sandbox.Definitions.MyShipWelderDefinition.Init(MyObjectBuilder_DefinitionBase builder)
at Sandbox.Definitions.MyDefinitionManager.InitDefinition[T](MyModContext context, MyObjectBuilder_DefinitionBase builder)
at Sandbox.Definitions.MyDefinitionManager.ToDefinitions(MyModContext context, DefinitionDictionary`1 outputDefinitions, DefinitionDictionary`1[] outputCubeBlocks, MyObjectBuilder_CubeBlockDefinition[] cubeBlocks, Boolean failOnDebug)
at Sandbox.Definitions.MyDefinitionManager.LoadPhase3(MyObjectBuilder_Definitions objBuilder, MyModContext context, DefinitionSet definitionSet, Boolean failOnDebug)
at Sandbox.Definitions.MyDefinitionManager.LoadDefinitions(List`1 contexts, List`1 definitionSets, Boolean failOnDebug, Boolean isPreload)
MOD_ERROR: [Alpha] Laser Welders Reloaded, in file: X:\Steam\steamapps\workshop\content\244850\1694721473\Data\CubeBlocks.sbc
Resource not found, setting to error model. Resource path: X:\Steam\steamapps\workshop\content\244850\1694721473\Models\Cubes\LaserMultiLB_Constr1.mwm
MOD_ERROR: [Alpha] Laser Welders Reloaded, in file: X:\Steam\steamapps\workshop\content\244850\1694721473\Data\CubeBlocks.sbc
Resource not found, setting to error model. Resource path: X:\Steam\steamapps\workshop\content\244850\1694721473\Models\Cubes\LaserMultiLB_Constr2.mwm
MOD_ERROR: [Alpha] Laser Welders Reloaded, in file: X:\Steam\steamapps\workshop\content\244850\1694721473\Data\CubeBlocks.sbc
Resource not found, setting to error model. Resource path: X:\Steam\steamapps\workshop\content\244850\1694721473\Models\Cubes\LaserMultiLB.mwm

this reads like a case of the mod not updating locally, steam workshop does not always update local mods, even when it says it did, did you check in \Steam\steamapps\workshop\content\244850\1694721473\Models\Cubes\ to see if the model files are there?

If not you might need to unsubscribe and resubscribe, or if all else fails you could try going to \Steam\steamapps\workshop\content\ and delete the file called appworkshop_244850.acf, that will force steam to go back and recheck every mod in case it missed something.