Hello,
I migrated centreon from centos 7 to debian 11, following https://docs.centreon.com/docs/migrate/migrate-from-el-to-debian/
I'm trying to migrate a poller:
I installed centreon-poller, I synchronized the plugins,
I had the error on the fingerprint which I also corrected by following https://thewatch.centreon.com/troubleshooting-41/poller-does-not-work-after-migration-or-reinstallation-fingerprint- changed-for-target-1177

now I have these errors:

2024-02-06 12:08:30 - ERROR - [core] Decoding issue. Protocol not good: hsu1QulEXbVaprhwL1vLME4EbuTA+NHdQ82geAnHF1is+Xlulh7NQwkpT7aYaM4H
2024-02-06 12:08:30 - ERROR - [core] Decoding issue. Protocol not good: 856pscVJ+DuNUhlESNtaSg==
2024-02-06 12:15:06 - ERROR - [core] Decoding issue. Protocol not good: qxPJSjg+rQRi2xoKLI8gkIZueMBYWT1OCiw5ZXd4/gSDBS6H+5LvQTsrgdnYOZdilbTuQJKUm8dETOVJ
 

what are these errors, I can't find an article on how to correct these errors.

thanks for the help