Issue Plesk Panel Error 500 / plesk repair 255 code

[solutionsnewtown]

Server operating system version

Debian 10.13 x86_64

Plesk version and microupdate number

Plesk Obsidian 18.0.60.0

Product version: Plesk Obsidian 18.0.60.0
OS version: Debian 10.13 x86_64
Build date: 2024/03/29 08:00
Revision: 5c75455d3b28ec4970da304c65d318799d0a66cc

HI everyone,
It seems that our Plesk server (hosted with 1AND1/IONOS) is having an issue out of nowehere. We we're able to access the plesk admin portal, couple days earlier and now we got an ERROR 500 when we try to access it.

1. - We've try a plesk repair
   1. Unfortunately, exit 255. we've followed (https://support.plesk.com/hc/en-us/...plesk-login-command-fails-with-255-error-code) but still same issue.
2. We've try a plesk installer, full update
   1. We were able to update but at end we goth a everytime we got that (same error as a stack trace get-login-link):

lstat("/opt/psa/admin/plib/vendor/plesk/zf1/library/constants.php", 0x7fff3eef1400) = -1 ENOENT (No such file or directory)
access("/var/parallels/feedback-disabled", F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/opt/psa/admin/conf/leika.conf", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
lseek(3, 0, SEEK_CUR) = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
read(3, "{\"serverSettingsVersion\":\"plesk-"..., 12288) = 4096

We're out of ideas to fix this situation.
The service itself for the client is working correctly but unable to manage it without the panel.

 

[Martin Dias]

Please contact Plesk support team on this topic. It will need to be checked on your server.

To sign in to support, please go to https://support.plesk.com

If you bought your license from a reseller, your reseller should provide support for you. If the reseller does not provide support, here is an alternative:
https://support.plesk.com/hc/en-us/articles/12388090147095