PlaySMS configuration is not working

Hi,

I've tried this app for NextCloud 20.0.5, but after selecting playsms as SMS provider and adding URL, user and pass I go an error:

sudo -u www-data php /var/www/nextcloud/occ twofactorauth:gateway:configure sms
Please choose a SMS provider (websms, playsms, clockworksms, puzzelsms, ecallsms, voipms, huawei_e3531, spryng, sms77io, ovh, clickatellcentral, clicksend): playsms
Please enter your PlaySMS URL: https://playsms.MyDomain.com
Please enter your PlaySMS username: YYYYYYYYY
Please enter your PlaySMS password: XXXXXXXXXXXXXXXXXXX
An unhandled exception has been thrown:
TypeError: Return value of "OCA\TwoFactorGateway\Command\Configure::execute()" must be of the type int, "null" returned. in /var/www/nextcloud/apps/mail/vendor/symfony/console/Command/Command.php:261
Stack trace:
#0 /var/www/nextcloud/apps/mail/vendor/symfony/console/Application.php(920): Symfony\Component\Console\Command\Command->run()
#1 /var/www/nextcloud/apps/mail/vendor/symfony/console/Application.php(266): Symfony\Component\Console\Application->doRunCommand()
#2 /var/www/nextcloud/apps/mail/vendor/symfony/console/Application.php(142): Symfony\Component\Console\Application->doRun()
#3 /var/www/nextcloud/lib/private/Console/Application.php(215): Symfony\Component\Console\Application->run()
#4 /var/www/nextcloud/console.php(100): OC\Console\Application->run()
#5 /var/www/nextcloud/occ(11): require_once('/var/www/nextcl...')
#6 {main}root@NextCloud-01:/var/www/nextcloud# mcedit /var/www/nextcloud/apps/mail/vendor/symfony/console/Command/Command.php

Also for PlaySMS I know that is necessary a hash to access the platform.

Start with the twofactorauth:gateway:configure sms entry point and Configure::execute(), using the reported PlaySMS input and stack trace to reproduce the failure. Check the PlaySMS configuration requirements, including the mentioned hash, and verify that a valid configuration completes without the reported null return TypeError.