Full file backup works ok errors (many) when using incremental

I use urbackup 2.5.32 on raspi for the last few years. The USB drive broke so I have replaced it and reinstalled urbackup and clients. When doing the first backup I used full file backup on two Windows computers and it went fine (no errors). When the scheduled time for incremental backup arrived got 800+ error messages? I tried to run incremental file backup from the client and got the following ERRORS

Errors
08/02/24 13:56
Creating directory “/media/BACKUP/urbackup/HASHAVSHEVET/240208-1355/.symlink_SqlServerWriter_{A65FAA63-5EA8-4EBC-9DBD-A0C4DB26912A}_da13180b883c37e33e8e007109b686df_model_files00000000” failed. - Bad message (code: 74)
Errors
08/02/24 13:56
Fatal error during backup. Backup not completed
Errors
08/02/24 13:56
Backup failed

Any help would be appreciated

Beez