Not able to post requisition when using mobile devices

Summary

When using mobile devices we are unable to post as we got a blocking error message.

Content

Hello, 

We're testing ORC mobile features. Recruiters are currently unable to post requisitions as they get a blocking error (in the screenshot below) as soon as they try to save their posting schedule. This is happening both on Android and IoS devices.

Have anybody already experienced this behaviour? Do you know how to solve it?

Thanks

Giada