I fop2 to version 30.2.06 and 48.0.2 firefox, and disconnect occurs with other fop2 users to make my connection.
There are some configuration to enable WebSocket connections over HTTPS links?

The fop2 is no longer available for installation via addons?

On a new install of fop2admin I try to apply the config in FreePBX Admin I get the following error.
I have tried to reinstall from the interface and have also downloaded and added the fop2admin mod manually. Both return the same error.

Reload failed because retrieve_conf encountered an error: 1

exit: 1
Added to globals: OPERATOR_XTN =
Added to globals: VM_OPTS =
Added to globals: VM_GAIN =
Added to globals: VM_DDTYPE = u
Added to globals: VMX_OPTS_LOOP =
Added to globals: VMX_OPTS_DOVM =
Added to globals: VMX_TIMEOUT = 2
Added to globals: VMX_REPEAT = 1
Added to globals: VMX_LOOPS = 1
[FATAL] SELECT data FROM parkinglot WHERE keyword='parkext' [nativecode=1146 ** Table 'asterisk.parkinglot' doesn't exist]SQL -
SELECT data FROM parkinglot WHERE keyword='parkext'

Trace Back:

/var/www/html/admin/libraries/sql.functions.php:25 die_freepbx()
[0]: SELECT data FROM parkinglot WHERE keyword='parkext' [nativecode=1146 ** Table 'asterisk.parkinglot' doesn't exist]SQL -
SELECT data FROM parkinglot WHERE keyword='parkext'

/var/www/html/admin/modules/fop2admin/functions.inc.php:68 sql()
[0]: SELECT data FROM parkinglot WHERE keyword='parkext'
[1]: getRow
[2]: 2

/var/lib/asterisk/bin/retrieve_conf:683 fop2admin_get_config()
[0]: asterisk
1 error(s) occurred, you should view the notification log on the dashboard or main screen to check for more details.