Wallet stopped syncing - btc explorer errors

I had 15 days of uptime with no issues and noticed today my wallet under the Bitcoin Core section is 99.97% synced and it just says “syncrhonizing.”

I have errors in the log under the btc-rpc-explorer section that show Error: connect ECONNREFUSED followed by an IP address and then all my installed apps list similar errors. The best I can figure out is that bitcoin core is refused a connection.

Any ideas how to fix?