For what it's worth, new server is not running as the old one. Hiccups appear quite frequently for me, something I had never seen before. I had experienced some slow days, but not what has been happening on the new one. Today below error showed up, lasted maybe a couple of minutes, but total black out:
An exception occurred: [XF\Db\Exception] Too many connections in src/XF/Db/Mysqli/Adapter.php on line 165
- XF\Db\Mysqli\Adapter->makeConnection() in src/XF/Db/Mysqli/Adapter.php at line 28
- XF\Db\Mysqli\Adapter->getConnection() in src/XF/Db/AbstractAdapter.php at line 62
- XF\Db\AbstractAdapter->connect() in src/XF/Db/Mysqli/Adapter.php at line 113
- XF\Db\Mysqli\Adapter->escapeString() in src/XF/Db/AbstractAdapter.php at line 518
- XF\Db\AbstractAdapter->quote() in src/XF/Db/AbstractAdapter.php at line 496
- XF\Db\AbstractAdapter->quote() in src/XF/DataRegistry.php at line 139
- XF\DataRegistry->readFromDb() in src/XF/DataRegistry.php at line 84
- XF\DataRegistry->get() in src/XF/DataRegistry.php at line 228
- XF\DataRegistry->offsetGet() in src/XF/App.php at line 1797
- XF\App->XF\{closure}() in src/XF/Container.php at line 31
- XF\Container->offsetGet() in src/XF/App.php at line 2325
- XF\App->setupAddOnComposerAutoload() in src/XF/App.php at line 1896
- XF\App->setup() in src/XF/Pub/App.php at line 93
- XF\Pub\App->setup() in src/XF.php at line 497
- XF::setupApp() in src/XF.php at line 520
- XF::runApp() in index.php at line 20