Yes, it is. No other error or anything.
I have also updated CiviCRM with a patch they released 6 days ago from 5.30.0 to 5.30.1 and then tried to reinstall CB but no success again!
I have installed CB on another website without the presence of CiviCRM and I had no issues.
I don't kow what can be wrong. I have updated everything, now I am using
CB 2.4.6+build.2020.10.21.15.46.58.5c8f79e2a
CiviCRM 5.30.1
Joomla 3.9.22
Wamp 3.2.3
Apache 2.4.46a
PHP 7.4.11
MariaDB 10.4.12
Thanks