Error after module update

I was running the module update to update the modules as shown in the screen capture.

While the update was running, I accidentally closed the web browser where the update was running.
After sometime, I was able to log back into the admin console on from a web browser.
At this time the Dashboard did not load the System Overview panel and the Apply Config button become available at the top right corner.
When I clock on the Apply Config button, I ran into this error.

exit: 1
Exception: Unable to locate the FreePBX BMO Class 'Pm2’A required module might be disabled or uninstalled. Recommended steps (run from the CLI): 1) fwconsole ma install pm2 2) fwconsole ma enable pm2 in file /var/www/html/admin/libraries/BMO/Self_Helper.class.php on line 216
Stack trace:

  1. Exception->() /var/www/html/admin/libraries/BMO/Self_Helper.class.php:216
  2. FreePBX\Self_Helper->loadObject() /var/www/html/admin/libraries/BMO/Self_Helper.class.php:104
  3. FreePBX\Self_Helper->autoLoad() /var/www/html/admin/libraries/BMO/Self_Helper.class.php:37
  4. FreePBX\Self_Helper->__get() /var/www/html/admin/modules/zulu/Zulu.class.php:39
  5. FreePBX\modules\Zulu->__construct() /var/www/html/admin/libraries/BMO/Self_Helper.class.php:125
  6. FreePBX\Self_Helper->autoLoad() /var/www/html/admin/libraries/BMO/Self_Helper.class.php:37
  7. FreePBX\Self_Helper->__get() /var/www/html/admin/libraries/BMO/Hooks.class.php:298
  8. FreePBX\Hooks->preloadBMOModules() /var/www/html/admin/libraries/BMO/Hooks.class.php:39
  9. FreePBX\Hooks->updateBMOHooks() /var/lib/asterisk/bin/retrieve_conf:61

I then rebooted the server itself and the issue still persist.
Calls are still working.

How can I get the system back to normal?

Thank you,

The solution provided by @BroColby at this post helped to resolve the issue.
Thank you very much.

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