Pam_unix(sudo:auth): auth could not identify password for [amp] after problem with space

OS Name/Version:
Distributor ID: Ubuntu
Description: Ubuntu 22.04.2 LTS
Release: 22.04
Codename: jammy

Product Name/Version: (Always use the full version number - not ‘Latest’)

ampinstmgr --Version
[Info] AMP Instance Manager v2.4.3 built 14/03/2023 21:50
[Info] Release spec: Release - built by CUBECODERS/buildbot on CCL-DEV

`sudo su -l amp`
`ampinstmgr stopall`
`ampinstmgr --nocache upgradeall`
`ampinstmgr start ADS`

but idkn.

Problem Description:

I had a problem with my space, and needed to extend the space. I have done it, after that i loaded a instance.json.bak → instance.json because of errors.

now i cant login to the interface and the least error is

Apr 17 18:44:17 AMP0 sudo[994]: pam_unix(sudo:auth): conversation failed
Apr 17 18:44:17 AMP0 sudo[994]: pam_unix(sudo:auth): auth could not identify password for [amp]

in service ampinstmgr status called from root

● ampinstmgr.service - AMP Instance Manager
     Loaded: loaded (/etc/systemd/system/ampinstmgr.service; enabled; vendor preset: enabled)
     Active: active (exited) since Mon 2023-04-17 18:44:18 UTC; 21min ago
       Docs: https://github.com/CubeCoders/AMP/wiki/AMP-systemd-script-(Linux)
    Process: 702 ExecStart=/opt/cubecoders/amp/ampinstmgr startboot true (code=exited, status=0/SUCCESS)
   Main PID: 702 (code=exited, status=0/SUCCESS)
      Tasks: 0 (limit: 23873)
     Memory: 30.1M
        CPU: 3.104s
     CGroup: /system.slice/ampinstmgr.service

Apr 17 18:44:16 AMP0 ampinstmgr[702]: [Info] Release spec: Release - built by CUBECODERS/buildbot on CCL-DEV
Apr 17 18:44:16 AMP0 ampinstmgr[702]: [Info] Waiting for AMP instance to start...
Apr 17 18:44:17 AMP0 sudo[994]: pam_unix(sudo:auth): conversation failed
Apr 17 18:44:17 AMP0 sudo[994]: pam_unix(sudo:auth): auth could not identify password for [amp]
Apr 17 18:44:17 AMP0 ampinstmgr[702]: [Notice] AMP instance ADS01 is now running.
Apr 17 18:44:17 AMP0 ampinstmgr[702]: [Info] bf7057e0cfa793456c4e1ccbe14dded987ebb28246df7184051155f4f3e6286b
Apr 17 18:44:17 AMP0 ampinstmgr[702]: [Info] b3c04a3c976600d237557cf5bfb947142a860313c0445132c26ccbca9807389b
Apr 17 18:44:18 AMP0 ampinstmgr[702]: [Info] fbffc1981e198f3ed6026b3b0ab299d2c14e1632225ccd9ee7e36a33c8e6f2e8
Apr 17 18:44:18 AMP0 ampinstmgr[702]: [Info] aba2e17bc7b5fdbdc568c84b622c65394b141dc9392051abe2c8bedea3d1155b
Apr 17 18:44:18 AMP0 systemd[1]: Finished AMP Instance Manager.

Actions taken to resolve so far:

i tried all from here Amp server running on linux server, unable to access web gui - #23 by D_P1 exept a new installation and googled alot ^^’

i hope anyone can help me because i dont want to reinstall and when i need to reinstall i dont know how to save my instances?!

Maybe i messed up with the password or some other ideas?

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