Submit Booking – An error has occurred

We’ve used Events Made Easy for doing booking for a public talk series we run (it’s been awesome). We’ve just started advertising a new event with the same booking setup we’ve used before, however, when submitting the form for booking, it comes back with:

An error has occurred

It doesn’t give any more information.

I thought this might be a similar issue to https://ww.wp.xz.cn/support/topic/an-error-has-occurred-message-after-update-to-version-2-0-53/ however we’re running 2.0.65.

I’m not the manager of the back-end system so I’m waiting for them to come back with logs, however, I was wondering if there was anything obvious you could see causing the issues.

For reference, give the other thread and comments about removing things, the source for the RSVP form is:

<h2>Event Booking Form</h2>
<p>If there is more than one of the same event on the same date, we ask you only sign up for one in consideration for others. Thank you.</p>
<p style=”margin-bottom: 10px;”>#_EVENTNAME at #_STARTDATE , #_STARTTIME</p>
<table style=”margin-top: 10px; margin-bottom: 10px;” class=’eme-rsvp-form’>
<tr><th scope=’row’>First Name*:</th><td>#REQ_FIRSTNAME</td></tr>
<tr><th scope=’row’>Last Name*:</th><td>#_LASTNAME</td></tr>
<tr><th scope=’row’>E-Mail*:</th><td>#_EMAIL</td></tr>
<tr><th scope=’row’>Phone number:</th><td>#_PHONE</td></tr>
<tr><th scope=’row’>Seats*:</th><td>#_SPACES</td></tr>
<tr><th scope=’row’>Comment:</th><td>#_COMMENT</td></tr>
</table>
#_SUBMIT
<p> </p>
<hr/>

The page I need help with: [log in to see the link]