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Hi, 
i installed orangepi focal server 
apache php mariadb server all ok 
 
i try to install ssl : 
sudo a2enmod ssl 
sudo a2ensite default-ssl 
sudo systemctl restart apache2 
 
 
i have this error : 
Jan 16 07:49:30 orangepizero2 apachectl[4642]: [Sat Jan 16 07:49:30.459936 2021] [core:emerg] [pid 4645] (38)Function not implemented: AH00023: Couldn't create the mpm-accept-mutex 
Jan 16 07:49:30 orangepizero2 apachectl[4642]: (38)Function not implemented: could not create accept mutex 
Jan 16 07:49:30 orangepizero2 apachectl[4642]: AH00015: Unable to open logs 
Jan 16 07:49:30 orangepizero2 apachectl[4642]: Action 'start' failed. 
Jan 16 07:49:30 orangepizero2 apachectl[4642]: The Apache error log may have more information. 
Jan 16 07:49:30 orangepizero2 systemd[1]: apache2.service: Control process exited, code=exited, status=1/FAILURE 
-- Subject: Unit process exited 
-- Defined-By: systemd 
-- Support: https://www.debian.org/support 
--  
-- An ExecStart= process belonging to unit apache2.service has exited. 
 
 
thanks for any help 
 
 
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