Chron job fails: exception caught in scheduler, SIGINT

INFO      [2025-03-07 23:05:02] 620  ---------------------------
INFO      [2025-03-07 23:05:02] 620  INIT
INFO      [2025-03-07 23:05:02] 620  Running Matomo 5.3.0-rc1 as Super User
INFO      [2025-03-07 23:05:02] 620  ---------------------------
INFO      [2025-03-07 23:05:02] 620  NOTES
INFO      [2025-03-07 23:05:02] 620  - Async process archiving supported, using CliMulti.
INFO      [2025-03-07 23:05:02] 620  - Reports for today will be processed at most every 3600 seconds. You can change this value in Matomo UI > Settings > General Settings.
INFO      [2025-03-07 23:05:02] 620  - Archiving was last executed without error 4 days 3 hours ago.
INFO      [2025-03-07 23:05:02] 620  ---------------------------
INFO      [2025-03-07 23:05:02] 620  START
INFO      [2025-03-07 23:05:02] 620  Starting Matomo reports archiving...
INFO      [2025-03-07 23:05:02] 620  1 out of 3 archivers running currently
INFO      [2025-03-07 23:05:02] 620  Start processing archives for site 1.
INFO      [2025-03-07 23:05:02] 620    Will invalidate archived reports for yesterday in site ID = 1's timezone (2025-03-07 00:00:00).
INFO      [2025-03-07 23:05:06] 620  Archived website id 1, period = day, date = 2025-03-07, segment = '', 3 visits found. Time elapsed: 3.492s
INFO      [2025-03-07 23:05:06] 620  Archived website id 1, period = range, date = 2025-02-05,2025-03-06, segment = '', 21 visits found. Time elapsed: 3.766s
INFO      [2025-03-07 23:05:07] 620  Archived website id 1, period = week, date = 2025-03-03, segment = '', 6 visits found. Time elapsed: 1.203s
INFO      [2025-03-07 23:05:08] 620  Archived website id 1, period = month, date = 2025-03-01, segment = '', 6 visits found. Time elapsed: 0.799s
INFO      [2025-03-07 23:05:09] 620  Archived website id 1, period = year, date = 2025-01-01, segment = '', 36 visits found. Time elapsed: 1.386s
INFO      [2025-03-07 23:05:09] 620  Finished archiving for site 1, 5 API requests, Time elapsed: 7.596s [1 / 1 done]
INFO      [2025-03-07 23:05:09] 620  Done archiving!
INFO      [2025-03-07 23:05:09] 620  ---------------------------
INFO      [2025-03-07 23:05:09] 620  SUMMARY
INFO      [2025-03-07 23:05:09] 620  Processed 5 archives.
INFO      [2025-03-07 23:05:09] 620  Total API requests: 5
INFO      [2025-03-07 23:05:09] 620  done: 5 req, 7656 ms, no error
INFO      [2025-03-07 23:05:09] 620  Time elapsed: 7.656s
INFO      [2025-03-07 23:05:09] 620  ---------------------------
INFO      [2025-03-07 23:05:09] 620  SCHEDULED TASKS
INFO      [2025-03-07 23:05:09] 620  Starting Scheduled tasks... 
ERROR     [2025-03-07 23:05:09] 620  Uncaught exception: Error: Undefined constant "SIGINT" in /var/www/html/core/Scheduler/Scheduler.php:134
Stack trace:
#0 /var/www/html/core/CronArchive.php(767): Piwik\Scheduler\Scheduler->run()
#1 /var/www/html/core/CronArchive.php(310): Piwik\CronArchive->runScheduledTasks()
#2 /var/www/html/core/Access.php(663): Piwik\CronArchive->Piwik\{closure}()
#3 /var/www/html/core/CronArchive.php(301): Piwik\Access::doAsSuperUser(Object(Closure))
#4 /var/www/html/plugins/CoreConsole/Commands/CoreArchiver.php(54): Piwik\CronArchive->main()
#5 /var/www/html/core/Plugin/ConsoleCommand.php(143): Piwik\Plugins\CoreConsole\Commands\CoreArchiver->doExecute()
#6 /var/www/html/vendor/symfony/console/Command/Command.php(298): Piwik\Plugin\ConsoleCommand->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#7 /var/www/html/core/Plugin/ConsoleCommand.php(158): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#8 /var/www/html/vendor/symfony/console/Application.php(1040): Piwik\Plugin\ConsoleCommand->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#9 /var/www/html/vendor/symfony/console/Application.php(301): Symfony\Component\Console\Application->doRunCommand(Object(Piwik\Plugins\CoreConsole\Commands\CoreArchiver), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#10 /var/www/html/core/Console.php(113): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#11 [internal function]: Piwik\Console->originDoRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#12 /var/www/html/core/Console.php(156): call_user_func(Array, Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#13 /var/www/html/core/Access.php(672): Piwik\Console->Piwik\{closure}()
#14 /var/www/html/core/Console.php(154): Piwik\Access::doAsSuperUser(Object(Closure))
#15 /var/www/html/core/Console.php(92): Piwik\Console->doRunImpl(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#16 /var/www/html/vendor/symfony/console/Application.php(171): Piwik\Console->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#17 /var/www/html/console(32): Symfony\Component\Console\Application->run()
#18 {main}
Uncaught exception in /var/www/html/core/Scheduler/Scheduler.php line 134:
Undefined constant "SIGINT"

Any idea what might be wrong? It worked for weeks and I updated to 5.3.0-rc1 and since then I get this error – it might also be a coincidence and not related to the update