LogLinker: Can't find file '/Script/GameplayTasksEditor'


I have been experiencing a problem for some time:
I have a node ‘ai move to’ et ‘move to location or actor’, but every time I restart the project, this node disappears.

I have an error message when opening the project.I have the error in 4.16 and 4.17. I put a file of the output log.
link text

Hope you can help!

Thank you