Solidres Site Stopped Working

I have a problem on an existing Solidres site, it was brought to my attention that no bookings could be made and when I try to make a booking I get the following message:

"We have no availability for this room type between (date 2018) and (date 2018). Click here to start over by changing your dates"

It is the same for every room type and every date I try to book.

Further to this I cannot edit any existing complex tariffs or create anu new compex tariffs, if I try to apply them and save nothing happens.

Has anyone have any idea what has went wrong here?
How can I fix this?

Hi,

Make sure that your room type's tariffs are available for your searched dates.

In case you can not save tariffs, please check your browser console to see if there are any JS errors.

If you need further assistance, please raise a new support ticket and provide us your website info, we will check it for you.

Regards,

Thanks for your answer.
The tarriffs are not created in complex tarriff, only the outdated tarriffs and the general info is created.

When I try to create a new complex tarriff I am getting a 500 internal server error.
I have copied and sent the error to the host and I'm waiting for a response, I'll update here with the solution but it looks like what you said and I think something is blocking the update on the server side

After investigation and countless emails back and forth my hosting account are suggesting it is a non compatible plugin.

I have the following installed:

The complex tariff version is 0.2.0
The Solidres version is 0.9.2
The wordpress version is 4.9.6

Can you confirm if the above are compatible?

Can you advise how I can resolve this?

Hi,

As we do not know about your issue in details therefore we are not able to give exact advice. Please send a screenshot of Chrome or Firefox console so that we can check it easier.

Complex Tariff for WP 0.2.0 and Solidres for WP 0.9.2 are all compatible with WordPress 4.9.6.

Regards,

Attached 2 screenshots including Console straight after clicking 'Apply' when trying to create new tariff: