For some reason i got this error today, four lines with the exactly same error, after each other as well, at the same time. Any thoughts? Running PHP 7.1.15
PHP Fatal error: Uncaught Error: Call to undefined method DateTime::setTimezone() in Grav\vendor\monolog\monolog\src\Monolog\Logger.php:320\nStack trace:\n#0 Grav\vendor\monolog\monolog\src\Monolog\Logger.php(392): Monolog\Logger->addRecord(300, ‘Plugin ‘gffi’ e…’, Array)\n#1 Grav\system\src\Grav\Common\Plugins.php(190): Monolog\Logger->addWarning(‘Plugin ‘gffi’ e…’)\n#2 Grav\system\src\Grav\Common\Plugins.php(42): Grav\Common\Plugins->loadPlugin(‘gffi’)\n#3 Grav\system\src\Grav\Common\Grav.php(428): Grav\Common\Plugins->__construct(Object(Grav\Common\Grav))\n#4 Grav\vendor\pimple\pimple\src\Pimple\Container.php(118): Grav\Common\Grav->Grav\Common\{closure}(Object(Grav\Common\Grav))\n#5 Grav\system\src\Grav\Common\Processors\ConfigurationProcessor.php(19): Pimple\Container->offsetGet(‘plugins’)\n#6 Grav\system\src\Grav\Common\Grav.php(133): Grav\Common\Processors\ConfigurationProcessor->process()\n#7 Grav\system\src in Grav\vendor\monolog\monolog\src\Monolog\Logger.php on line 320