Pentax point and shoot error message

I have a Zoom 90 WR that has served me well for the past bunch of years. It is now flashing error code "H3". My dealer said I need to send it in for repairs, pre-paid $119. The camera is no longer worth that much, but there is really nothing else similar out there. Any do-it-yourselt suggestions?
Thanks

Yes, I'm afraid it's a shutter fault
https://www.pentaxuser.com/faq/pentaxerrorcodes.html

Apart from changing the battery and hoping that the camera somehow resets itself, I think you'll either have to have it serviced or look for a replacement - eBay perhaps!