Squid, c-icap, clamd, ntopng all result in PHP Fatal error: Uncaught TypeError

[noreast-it]

I searched the forum and the closest article I found accused the poster of running infinite pings.

All 4 services show that they stopped for the same error. I cannot restart them due to the same error.

Netgate 4200 on 25.11.1 has 83% memory free, When the services are running it had 30% free.

error message:

[02-Jun-2026 05:59:51 America/Toronto] PHP Fatal error: Uncaught TypeError: fclose(): Argument #1 ($stream) must be of type resource, false given in /etc/inc/filter.inc:3950
Stack trace:
#0 /etc/inc/filter.inc(3950): fclose()
#1 /etc/inc/filter.inc(1001): filter_nat_rules_generate()
#2 /etc/rc.filter_configure_sync(32): filter_configure_sync()
#3 {main}
thrown in /etc/inc/filter.inc on line 3950