Licences suddenly seem to have expired

I run three Perch sites and all three of them (two on the same hosting, one on another) when I try and log in say "Sorry, your license key isn't valid for this domain."

The domains have not changed, so I've no idea why this has suddenly happened. I think I'm using version 2.7 but can't see how to confirm as I can't login.

However, I have just upgraded one site on a staging server to version 3.1.4 and can log in to Perch fine...However, now I get an error on the frontend saying:

Parse error: syntax error, unexpected '[' in {full path redacted}arebe.co.uk/html/perch/core/lib/PerchRequest.class.php on line 77

If I upgrade the other sites will they also generate the same error and how do I resolve it?

The sites are:

On Media Temple

http://certifact.co.uk

http://arebemarketing.co.uk
http://arebe.co.uk.s164403.gridserver.com/ (Staging server version Perch 3)

On 1 and 1

http://www.greenairmonitoring.co.uk

Any help appreciated.

Thanks!

On the Media Temple sites, it's 7.2.12.

Not sure about the Green Air Monitoring site as the client hosts that elsewhere.

Thanks.

Pretty sure it's not.

First screenshot directly from Media Temple PHP settings, second from Perch itself.

According to Media Temple, 5.3.29 is the server base version. However they say that the domain version is the only one that will apply to my site which is 7.2.12. Here's more confirmation http://arebe.co.uk.s164403.gridserver.com/phpinfo.php.

Is there anything else it could be?

Thanks.

Just in case anyone else has this issue, I managed to get it solved with the help of Perch developer Ryan from Made by Kingfisher.

The issue was that 'AddHandler php-script .html’ in .htaccess. Needed to be changed to:

AddHandler php-latest .html

Did this and it's worked perfectly.

Thanks.