I've done everything... but even after running setup in upgrade mode nothing have changed.
I've turned off all the compressions, but still I have errors. And get infinite system settings loading.
I'll try to create another database and subdomain to test a fully new installation. If I'll still get errors, I think I'll contact my hosting support.
Fully Reinstalled modX using new database and subdomain, doublechecked charsets, but... nothing changed.
I have same problem.
I try use this code
$siteStartId = $modx->getOption('site_start');
Modx CAN read settings from DB, it's mean that connection to sysstem_setting datatable exist .But in 'System Settings' is nothing shown and 'infinity loading'.
I think problem in permission, modx can't read some files with settings. Which setting files using by 'System Settings' page?