Problem after upgrading from version 2.7.2 to version 2.8.0

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As the title says, there is a problem after upgrading from version 2.7.2 to version 2.8.0
squid not working
squidGuard not working (Probably because squid doesn't work)
ups status shows red question mark
The disk is half full, 26 gigabytes. (How do I delete it or set it so it doesn't reach this volume?)

This is the message I get in Notices
on the top right of the dashboard

PHP ERROR: Type: 1, File: /etc/inc/util.inc, Line: 3961, Message: Uncaught TypeError: array_get_path(): Argument #1 ($arr) must be of type array, null given, called in /usr/local/pkg/squidguard.inc on line 1092 and defined in /etc/inc/util.inc:3961
Stack trace:
#0 /usr/local/pkg/squidguard.inc(1092): array_get_path()
#1 /usr/local/pkg/squidguard.inc(1035): convert_pfxml_to_sgxml_source()
#2 /usr/local/pkg/squidguard.inc(93): convert_pfxml_to_sgxml()
#3 /etc/inc/pkg-utils.inc(691): require_once('/usr/local/pkg/...')
#4 /etc/rc.start_packages(66): sync_package()
#5 {main}
thrown @ 2025-08-21 13:06:05
PHP ERROR: Type: 1, File: /etc/inc/util.inc, Line: 3961, Message: Uncaught TypeError: array_get_path(): Argument #1 ($arr) must be of type array, null given, called in /usr/local/pkg/squidguard.inc on line 1092 and defined in /etc/inc/util.inc:3961
Stack trace:
#0 /usr/local/pkg/squidguard.inc(1092): array_get_path()
#1 /usr/local/pkg/squidguard.inc(1035): convert_pfxml_to_sgxml_source()
#2 /usr/local/pkg/squidguard.inc(93): convert_pfxml_to_sgxml()
#3 /etc/inc/pkg-utils.inc(1062): require_once('/usr/local/pkg/...')
#4 /etc/rc.packages(80): delete_package_xml()
#5 {main}
thrown @ 2025-08-21 13:09:18 

How do I fix these problems?