Warning: Redis::connect() expects at most 5 parameters

Hi

meine Cron jobs funktionieren nicht mehr richtig. Ich erhalte die Fehlermeldung
Warning: Redis::connect() expects at most 5 parameters
RedisException: Redis server went away in /var/www/vhosts/wesbseite.com/httpdocs/wp-content/object-cache.php:476
Stack trace:
#0 /var/www/vhosts/website.com/httpdocs/wp-content/object-cache.php(476): Redis->auth(‘7.,Fh!{05R^-og2…’)
#1 /var/www/vhosts/website.com/httpdocs/wp-content/object-cache.php(185): WP_Object_Cache->__construct(true)
#2 /var/www/vhosts/website.com/httpdocs/wp-includes/load.php(581): wp_cache_init()
#3 /var/www/vhosts/website.com/httpdocs/wp-settings.php(127): wp_start_object_cache()
#4 /var/www/vhosts/website.com/httpdocs/wp-config.php(122): require_once(‘/var/www/vhosts…’)
#5 /var/www/vhosts/website.com/httpdocs/wp-load.php(37): require_once(‘/var/www/vhosts…’)
#6 /var/www/vhosts/website.com/httpdocs/wp-cron.php(39): require_once(‘/var/www/vhosts…’)
#7 {main}
PHP Warning: file_put_contents(/var/www/vhosts/website.com/httpdocs/wp-content/plugins/opcache-mo-file/cache/9bc6b32e2d7d5ad053933d0a5733044b.php): failed to open stream: Permission denied in /var/www/vhosts/website.com/httpdocs/wp-content/plugins/opcache-mo-file/opcache-mo-file-mu.php on line 181

PHP Version ist 7.3.1

Eine Idee?

Vielen Dank
Gru?
Hansj?rg