it most likely means at least one of your doors doesnt have dynamicpath clicked in radiant. it is located at the top of the entity window when you have a script_brushmodel selected

All my doors have dynamicpath and i'm still getting error

at least one script is referencing a object that doesnt have that ticked and that script is calling connect/disconnectpaths, stuffys soul chests maybe?

I don't have soul chests and I started getting this error when I tried adding a weapon to my map.

developer mode will tell you where the issue lies, assuming your map loads in devmode

connect and disconnect paths is used when you place or remove a obstruction, to enable or disable the paths between it

so clips usually, that get deleted or spawned

I deleted all my clips and still getting the same error

i said "for example"

Doesn't "have" to be a clip, just saying a weapon will not be the cause

Use developer

did you use the standard/correct prefabs for window barrier's? Try stamping one, and see if there's a clip in there that doesn't have dynamic-paths ticked?

EDIT: lkooking at the error, it's prob a door-brush

I dont have clips on my doors. Could that be a problem?

lol I just said not just clips

A door is a script brush - which is solid and therefore can cut of one node from another

What I suspect you've done is changed the door when you thought you were editing something else at some point in radiant