Did you whitelist your game folder in windows defender, Their is an issue with the client that it detects that it is a virus, and this may be your issue.
We most likely have, I played more so back in 2019 than anything, Recently just got back into the game due to a friend, Most people know me as Iris, prob why you don't recognize the name.
Like say you wanted to move your item reader, You'd go ingame, Open the configuration window, Go to either aio/floor or both whatever you use, and change the position and size values there and it should save.
You have to edit it using the values, You can't just move it and have it stick. The only way it can save the positioning is if you actually manually set where its located.
@BullsDeep It's so odd cause I've never actually seen a stack traceback error from his addon set, Hopefully he can help you and its something simple.
Edit: Tested Timer, Cause I actually didn't have it in my addons folder to begin with and it does have a present handler error, I think possibly that the item reader that you have may be corrupt possibly.