Problem after installation

[kessi54]

I installed phoca gallery in joomla 2.5.1 successfully. But if I want to create a new category I see the following messages:

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /var/www/schnappi1/htdocs/joomla/libraries/joomla/database/database/mysql.php on line 287

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /var/www/schnappi1/htdocs/joomla/libraries/joomla/database/database/mysql.php on line 287

Warning: Invalid argument supplied for foreach() in /var/www/schnappi1/htdocs/joomla/administrator/components/com_phocagallery/libraries/phocagallery/render/renderadmin.php on line 70

I also installed Phoca Download and the same thing happened, Should I post the same Problem in the Download-forum or can we solve both problems here?
What can I do? Please help!
Klemens

[Jan]

Hi, see:
https://www.phoca.cz/documents/16-joomla ... ent-errors

Jan

[kessi54]

Hallo Jan,
thank you for your link. I solved the problem by new installation of the two components Phoca gallery and phoca download.
Best regards
Klemens

[Jan]

Ok