Urgent: Fix Express JS Server Issue

My Express JS server has unexpectedly stopped running. The problem arose suddenly without any changes made to the code or after an update. There are error messages present in the logs, and I need assistance troubleshooting and resolving this issue. Please note that all work must be done via FTP only.

Ideal Skills and Experience:
- Proficient in Express JS
- Experienced in troubleshooting server issues
- Familiar with FTP
- Able to interpret error messages and logs
- Available for urgent tasks