Time to find a host that will support PHP 7.2 and/or 5.6 for a longer period of time. Or you could change to a VPS.
Another option is to look into phpVMS v7.
phpVMS version?
MySQL/MariaDB version?
I see you are on PHP version 7.4 - phpVMS 5.5.2 and prior will not run correctly on PHP versions 7.3 and higher. Check with your host to see if you can change to another PHP version. If using phpVMS 5.5.2 you will need PHP 5.6. If using phpVMS 5.5.2.72 you will need PHP 7.0-7.2
Answer the two questions above and we can advise further.
V7 of what..... phpVMS or PHP? They are two totally separate items.
If you answer he questions below, we can better help you...
phpVMS version?
PHP version?
MySQL/MariaDB version?
Paid or free hosting?
Does host have Cpanel?
What exact issues are you having with the install?
Are you using phpVMS?
https://crew.flytravela.com results in a 404 error.
While your front page looks nice, there are no options to learn more about your operation.... airports served, aircraft flown, routes, operations manual, etc.
Looks like you are using MariaDB 10.3.24
Others have reported issues with MariaDB 10.2 and 10.3 . You may want to ask your host to turn off strict mode - if it is on - and then you can test again.
Maybe @Strider has some additional ideas.
We need to see the entire error and also the code on "line 793".
You also may want to contact iCrew to have them help you with the issue.
We don't know why this could be. We also don't know if the problem is with the database. Without the requested info, we really can't help you out.
Here is the fix for the date/time
https://github.com/ProAviaAZ/phpvms_5.5.2.72/issues/2
This fix has been implemented in phpVMS 5.5.2.72. You can make the same changes in 5.5.2 manually. There may be other issues with strict mode which were not addressed in the above link.
There is no phpVMS 5.6 - there is 5.5.2 and 5.5.2.72
Verify which phpVMS version you are using.
What PHP version?
What MySQL or MariaDB version?
Free or paid hosting?
Shared hosting, dedicated, VPN?
phpVMS version?
PHP version?
MySQL or Maria DB version?
Explain what this home page is that is outside of the phpVMS install and why you think you need it.
Is this home page WordPress related?
Check what web541 suggests above, then...... Since you have MySQL 5.7 - check to see if strict mode is on or off. If on, set it to off. Several reports of strict mode errors in many different areas of phpVMS.