Error Upgrading PM2 Module

Upgrading module 'pm2' from 15.0.3.1 to 15.0.3.3
Downloading module 'pm2'
Processing pm2
Verifying local module download...Verified
Extracting...Done
Download completed in 0 seconds
Installing/Updating Required Libraries. This may take a while...The following messages are ONLY FOR DEBUGGING. Ignore anything that says 'WARN' or is just a warning
Found npm-cache v0.7.0
Running installation..
Error: Function name must be a string in file /var/www/html/admin/modules/pm2/Pm2.class.php on line 488
Stack trace:
1. Error->() /var/www/html/admin/modules/pm2/Pm2.class.php:488
2. FreePBX\modules\Pm2->FreePBX\modules{closure}() /var/www/html/admin/libraries/Composer/vendor/symfony/process/Process.php:1414
3. Symfony\Component\Process\Process->Symfony\Component\Process{closure}() /var/www/html/admin/libraries/Composer/vendor/symfony/process/Process.php:1519
4. Symfony\Component\Process\Process->readPipes() /var/www/html/admin/libraries/Composer/vendor/symfony/process/Process.php:426
5. Symfony\Component\Process\Process->wait() /var/www/html/admin/libraries/Composer/vendor/symfony/process/Process.php:212
6. Symfony\Component\Process\Process->run() /var/www/html/admin/modules/pm2/Pm2.class.php:489
7. FreePBX\modules\Pm2->installNodeDependencies() /var/www/html/admin/modules/pm2/Pm2.class.php:142
8. FreePBX\modules\Pm2->install() /var/www/html/admin/libraries/modulefunctions.class.php:2539
9. module_functions->_runscripts() /var/www/html/admin/libraries/modulefunctions.class.php:2018
10. module_functions->install() /var/www/html/admin/libraries/Console/Moduleadmin.class.php:419
11. FreePBX\Console\Command\Moduleadmin->doInstall() /var/www/html/admin/libraries/Console/Moduleadmin.class.php:1424
12. FreePBX\Console\Command\Moduleadmin->handleArgs() /var/www/html/admin/libraries/Console/Moduleadmin.class.php:218
13. FreePBX\Console\Command\Moduleadmin->execute() /var/www/html/admin/libraries/Composer/vendor/symfony/console/Command/Command.php:255
14. Symfony\Component\Console\Command\Command->run() /var/www/html/admin/libraries/Composer/vendor/symfony/console/Application.php:953
15. Symfony\Component\Console\Application->doRunCommand() /var/www/html/admin/libraries/Composer/vendor/symfony/console/Application.php:248
16. Symfony\Component\Console\Application->doRun() /var/www/html/admin/libraries/Composer/vendor/symfony/console/Application.php:148
17. Symfony\Component\Console\Application->run() /var/lib/asterisk/bin/fwconsole:136