Wow not updating tools
If your problem doesn't come back it was likely a config issue and you can try re-setting up all of your Add Ons again from scratch.I figured instead of typing the problems it would be better if i made a video instead, so here it is https://It is safe to completely delete this folder as it will be recreated the next time the game is started.
You can then Rename the "Interface_Backup" folder back to "Interface" (you may need to delete the one Wo W creates) and try again.
For 64bit versions of MS Windows this can be found by going to Start - Run and typing "%Program Files(x86)%".
If you are unsure if you have a 64bit or 32bit version of windows try the "%Program Files(x86)%" folder and if it errors you must have a 32bit version of windows.
There could be bad code in another addon that is causing the conflict, but at that point you can narrow the problem down greatly.
Delete it and reinstall, (the addon not Wo W )would be my guess. Still not working after that reinstall elvui (in game) or disable all other addon's and troubleshoot.