AutoSSL stuck in pending

Hi, In my AutoSSL log: Checking websites for "[username]" " 2:32:05 PM Analyzing "[username].com" " 2:32:05 PM ERROR TLS Status: Defective ERROR Defect: NO_SSL: No SSL certificate is installed. what can be the problem? in the pending queue stays now 6 hours after enabling:

webdisk.[domain]	[domain]	[username]	Aug 7, 2019 8:50:01 AM	689878641	Pending
cpanel.[domain]	[domain]	[username]	Aug 7, 2019 8:50:01 AM	689878641	Pending
webmail.[domain]	[domain]	[username]	Aug 7, 2019 8:50:01 AM	689878641	Pending
mail.[domain]	[domain]	[username]	Aug 7, 2019 8:50:01 AM	689878641	Pending
www.[domain]	[domain]	[username]	Aug 7, 2019 8:50:01 AM	689878641	Pending
[domain]	[domain]	[username]	Aug 7, 2019 8:50:01 AM	689878641	Pending