InvalidArgumentException: sink must not be a boolean in GuzzleHttp\Client->applyOptions() (line 384 of /home/admin/web/testdr.vpoltave.net/public_html/vendor/guzzlehttp/guzzle/src/Client.php).
I have updated the drupal version from drupal 8.6.15 to drupal 8.8.2 but when we submit the form I am facing the issue.
The website encountered an unexpected error. Please try again later.
Error: Class 'CSD\Marketo\Client' not found in Drupal\marketo_ma\Service\MarketoMaApiClient->getClient() (line 119 of modules/patched/marketo_ma/src/Service/MarketoMaApiClient.php).
I have been developing a site over several weeks and have now hit a wall.
After installing some new modules and attempting to resolve this error (composer can't delete default.services.yml) I changed permissions on sites/default using: