I have installed this brazilian shipping module – https://bitbucket.org/igor_lm/igorludgero_correiosofflinem2 – then I got the error:

  PHP Fatal error:  Uncaught Error: Call to undefined method Igorludgero\Correios\Model\ResourceModel\Cotacoes::getCollection() in /magento221/vendor/igorludgero/correios/Helper/Data.php:276   Stack trace:   #0 /magento221/vendor/igorludgero/correios/Cron/UpdateTracks.php(24): Igorludgero\Correios\Helper\Data->updateOfflineTracks()   #1 [internal function]: Igorludgero\Correios\Cron\UpdateTracks->execute(Object(Magento\Cron\Model\Schedule))   #2 /magento221/app/code/Magento/Cron/Observer/ProcessCronQueueObserver.php(292): call_user_func_array(Array, Array)   #3 /magento221/app/code/Magento/Cron/Observer/ProcessCronQueueObserver.php(228): Magento\Cron\Observer\ProcessCronQueueObserver->_runJob(1511677080, 1511677144, Array, Object(Magento\Cron\Model\Schedule), 'igorludgero_cor...')   #4 /magento221/lib/internal/Magento/Framework/Event/Invoker/Invoker in /magento221/vendor/igorludgero/correios/Helper/Data.php on line 276 

This does not seem to be a coding issue since it works for others, I also had opportunity to talk with its autor. So I was wondering it could be related to php config. I found out similar php fatal errors on google regarding short_open_tag set to off but that was not the case. It doesn’t look like max_execution_time problem either.

Does anyone know which configuration could possibly cause such call to undefined method?

Magento 2.2.1 PHP 7.0.25 MySQL 5.6.33 Ubuntu 14.04.5 LTS 

Thank you!