Unable to install or access Imunify360 after the Imunify360 Extension was installed, the page is constantly reloading and refreshing on its own

Symptoms

• Unable to install or access Imunify360 after the Imunify360 Extension was installed, the page is constantly reloading and refreshing on its own

• The following error can be found in /var/log/i360deploy.log:

  Installation daemon created pid file /usr/local/psa/var/modules/imunify360/installation.pid Installation daemon forked first time Installation daemon forked second time Installation daemon initialized Starting i360deploy.sh
  [2023-10-07 11:27:15] Checking for an update to i360deploy.sh
  [2023-10-07 11:27:15] Downloading i360deploy.sh.repo_version (please wait)
  [2023-10-07 11:27:16] i360deploy.sh is already the latest version (2.82) - continuing Detecting ostype... centos In a few moments the script will install latest imunify360-firewall package (w/dependencies)... (Ctrl-C to cancel)
  [2023-10-07 11:27:25] Failed to get package version

• The following error can be found in the Plesk debug log:

  [2023-10-07 12:12:25.694] 2319039:65212f09a4e02 DEBUG [util_exec] [212f5c49c2b1a43ea68f0983e19b86c8-0] Starting: filemng root list files /usr/local/psa/var/modules/imunify360/tmp-executeWxAaUh --in-bytes --allow-root, stdin:
  [2023-10-07 12:12:25.695] 2319023:65212f0996444 DEBUG [extension/imunify360] [65212f09a7327] Finished in 0.01018s, Error code: 1, stdout: execute.py: execve failed for /usr/local/psa/admin/sbin/modules//imunify360/execute.py: No such file or directory
  System error 2: No such file or directory
  , stderr: execute.py: execve failed for /usr/local/psa/admin/sbin/modules//imunify360/execute.py: No such file or directory
  System error 2: No such file or directory

• The following error occurs when executing the deployment script /usr/local/psa/admin/sbin/modules/imunify360/i360deploy.sh manually:

  # /usr/local/psa/admin/sbin/modules/imunify360/i360deploy.sh
  Checking for an update to i360deploy.sh
  Downloading i360deploy.sh.repo_version (please wait)
  New version (2.82) of i360deploy.sh detected
  Do you want to run i360deploy.sh 2.82 now (y/n) ?
  y
  OK, executing i360deploy.sh.repo_version
  Download of i360deploy.sh 2.82 successful
  Run /usr/local/psa/admin/sbin/modules/imunify360/i360deploy.sh
  Skipping check version
  Detecting ostype... centos
  In a few moments the script will install latest imunify360-firewall package (w/dependencies)... (Ctrl-C to cancel)
  [2023-10-07 12:15:58] Failed to get package version

• Repository error occurs when executing package update or repository reload, e.g.:

  # yum update
  ...
  Errors during downloading metadata for repository 'mariadb-main':
  - Status code: 404 for https://dlm.mariadb.com/repo/mariadb-server/10.7/yum/rhel/8/x86_64/repodata/e3833871afca2d811714f593ca811a49aa164403fe90dce8fa162127d4accbaa-updateinfo.xml.gz 
  - Status code: 404 for https://dlm.mariadb.com/repo/mariadb-server/10.7/yum/rhel/8/x86_64/repodata/87f4cced936ba0b45379e14a9a76e20837bdffcfff567065bc344e9af1fb6e4c-filelists.xml.gz 
  - Status code: 404 for https://dlm.mariadb.com/repo/mariadb-server/10.7/yum/rhel/8/x86_64/repodata/222709914d36d4a0fd607616111adc273a0822b3d990597747cb4aac88c80396-primary.xml.gz 
  Error: Failed to download metadata for repo 'mariadb-main': Yum repo downloading error: Downloading error(s): repodata/87f4cced936ba0b45379e14a9a76e20837bdffcfff567065bc344e9af1fb6e4c-filelists.xml.gz - Cannot download, all mirrors were already tried without success; repodata/e3833871afca…