Octoprint fails to start

What is the problem?

I have multiple instances of octoprint on my rpi 4. They were working properly. Now, I can start instance 2 at port 5001 but the original will not start with port 5000 or without any port number. When I enter my ip address or 210:5000 I get an unable to connect message. If I enter it connects without any problems.

What did you already try to solve it?

I double checked all of the settings on my rpi.
When I connect to instance 2 I can change the USB port and connect to the printer on instance 1 but it is still on port 5001, not 5000.

Have you tried running in safe mode?

I cannot get that far.

Complete Logs

octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support! Not log excerpts, complete logs.)

Additional information about your setup

OctoPrint version 1.5.2, OctoPi version 0.17.0, printer CR-10s, firmware, browser: chrome and firefox, operating system, Windows 10 as much data as possible

2 posts were merged into an existing topic: Multiple printers per server megathread