PHP Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, int given

[lottaar]

Every now and then when using the MODX Manager the site crashes (get blank white pages) and I get the following in the server error log. It's solved by emptying the core/cache folder.

[Sun Apr 23 13:48:58.851043 2023] [proxy_fcgi:error] [pid 1633846] [client 217.X.X.X:X] AH01071: Got error 'PHP message: PHP Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, int given in /var/www/vhosts/mysite.com/httpdocs/core/src/Revolution/modLexicon.php:242\nStack trace:\n#0 /var/www/vhosts/mysite.com/httpdocs/core/src/Revolution/modLexicon.php(242): array_merge()\n#1 /var/www/vhosts/mysite.com/httpdocs/core/components/seosuite/src/SeoSuite.php(122): MODX\\Revolution\\modLexicon->load()\n#2 /var/www/vhosts/mysite.com/httpdocs/core/components/seosuite/bootstrap.php(13): Sterc\\SeoSuite\\SeoSuite->__construct()\n#3 /var/www/vhosts/mysite.com/httpdocs/core/vendor/pimple/pimple/src/Pimple/Container.php(122): MODX\\Revolution\\modX->{closure}()\n#4 /var/www/vhosts/mysite.com/httpdocs/core/src/Revolution/Services/Container.php(29): Pimple\\Container->offsetGet()\n#5 /var/www/vhosts/mysite.com/httpdocs/core/cache/includes/elements/modx/revolution/modplugin/25.include.cache.php(4): MODX\\Revolution\\Services\\Container->get()\n#6...', referer: https://mysite.com/manager/?a=element/chunk/update&id=50

MODX 3.0.4-DEV, PHP 8.2.5, SEO Suite 3.1.2