Logging into the admin CP
 

I get the following error when logging into the admin cp:

Warning: opendir(/path/to/your/photopost/data): failed to open dir: No such file or directory in /home/virtual/site10/fst/var/www/html/photopost/adm-main.php on line 19

Warning: readdir(): supplied argument is not a valid Directory resource in /home/virtual/site10/fst/var/www/html/photopost/adm-main.php on line 21

Warning: closedir(): supplied argument is not a valid Directory resource in /home/virtual/site10/fst/var/www/html/photopost/adm-main.php on line 29

I fixed it!

how did you fix it?
(i have the same problem...)

By entering the proper path to his data directory.