E-One IH091 Basement Grinder Pump Failure

Need some urgent advice.

Have a 9 year old E/One IH091 Grinder in my home that just tripped the audible alarm. Prior to this, on Friday morning, I heard the pump operating continuously, but without any alarms. To try and save the pump, I shut the breaker off. Periodically since then I have been turning on the breaker to get water out of the basin, and then turning it off when I heard the pump running continuously. There were several instances where it operated normally.

So from the first time noticing the continual running until now, it has been 6 days.

At this point, I am trying to figure out next steps. As I said, this is in my basement, and the people I bought the home from had no idea what it was or why it was installed. I am on municipal water and sewer and since it is in my house, I am pretty sure I own it, but also wonder if I should contact the municipality.

I had originally thought that the pump had something clogged/caught around the impeller, which is why it keeps running, and it would be an easy fix by me just pulling the pump/grinder out and clearing that. But from some research (there isn't much out there), it sounds like it could be a failed part of the pump, and would require replacement. I am relatively handy and planned on tackling this myself, but if it truly is something that requires replacement, then I'd clearly have to call someone to come out.

If it is simply a clog, then my plan was to isolate the incoming water via a gate valve in the main sewer drain, unscrew the 8 bolts on top, and then pull the assembly out to inspect and/or clear the clog.

If anyone has any experience, or can offer feedback on my dilemma, I'd greatly appreciate it.

Inside top cover (the actual grinder/pump)

Stock image of unit