**Describe the bug** When running ./sync --updatedb from the sync folder , getting the error "CRITICAL: Call to undefined function pcntl_signal()" **To Reproduce** Steps to reproduce the behavior: 1. Go to the sync folder 2. Run composer update and then composer install 3. Followed the steps as per README.MD for sync to execute the commands " ./sync --updatedb" & " ./sync" **Screenshots**  **Additional context** Also, would be able to provide the configuration file details to configure IMAP and MySQL config. Assuming it's the local.ini file.