If your backups aren't running please try the following to resolve the issue.
1. Check MDOQ Endpoint
Select your production/live connector instance within MDOQ. Select "Settings" you should then be able to paste Frontend URL and Gateway Endpoint into your web browser.
For example if your Frontend URL is: https://www.example.com and your Gateway Endpoint is: my-gateway-endpoint. You should paste https://www.example.com/my-gateway-endpoint into your web browser.
If you get the response "Post Variables Missing" this is correct and you can proceed to the next step.
If you don't get this response then please follow the Mdoq_Connector install guide.
2. Check your WAF
If you aren't using a WAF you can skip this step.
If you are using a WAF please ensure the MDOQ IPs are allowed to bypass your WAF.
If you are using MDOQ for hosting your production site, please ensure your sites IP address is allowed to bypass the WAF also. (If you aren't sure about this please contact us)
3. Check PHP Info
Select your production/live connector instance within MDOQ.
Select "Toolbelt" > "Reports" > "Run PHP info"
If this report succeeds please carry on to the next step.
If not please raise a support request.