Probleme= Log agent Bad request

Hello
Since yesterday on one of my r202 clients I have the error log agent -run exception: bad request,
I have 8 other clients with the same version the same content and the same pc configuration which does not have this problem
I also noticed that the client takes time to connect to the server while the pc is well connected to the internet
I also updated one of the clients and upgrade to version r252.5 with anydesk , but the watchdog does not work the folder exists but the executable is missing
do you recommend this version?
Thank you