My passport barcode doesn't scan anymore?

My current passport was one I had to get in person as an emergency back in 2021. It doesn't have the chip or whatever in the cover that scans on phones (RFID? not sure what its called) as I think the passports that are printed quickly in office don't/didn't come with those.

Now the real problem is the barcode in the back doesn't seem to scan anymore. This most recent time I was at the airport, the agent treated me with alot of suspicion... I'm going to Norway & Turkey soon and don't want any problems.

It doesn't expire til 2031 but I have lost a significant amount of weight since my passport photo was taken, should I get it replaced?

The edges of the book are fraying just barely and I'm also wondering if that might be an issue.