Errors when running admin package

Hello-

I am very new at this, so don't yell at me. So far I have set up the catalog half, and it seems to work. Now I set up the admin package, and it half-works. What I mean is, I can view the pages, and make changes, but I get 2 different sets of errors. The first appears at the top of every page:

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Warning: Unable to access /home/virtual/site486/fst/var/www/html/home/admin/mainwebsite_html/catalog/includes/data/rates.php in /home/virtual/site486/fst/var/www/html/storeadmin/includes/include_once.php on line 4

Warning: Failed opening '/home/virtual/site486/fst/var/www/html/home/admin/mainwebsite_html/catalog/includes/data/rates.php' for inclusion (include_path='.:/php/includes:/usr/share/php') in /home/virtual/site486/fst/var/www/html/storeadmin/includes/include_once.php on line 4
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The second error occurs when I try to change something. Even though I get this error, the changes are still made:

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Warning: Unable to access /home/virtual/site486/fst/var/www/html/home/admin/mainwebsite_html/catalog/includes/data/rates.php in /home/virtual/site486/fst/var/www/html/storeadmin/includes/include_once.php on line 4

Warning: Failed opening '/home/virtual/site486/fst/var/www/html/home/admin/mainwebsite_html/catalog/includes/data/rates.php' for inclusion (include_path='.:/php/includes:/usr/share/php') in /home/virtual/site486/fst/var/www/html/storeadmin/includes/include_once.php on line 4

Warning: Cannot add header information - headers already sent by (output started at /home/virtual/site486/fst/var/www/html/storeadmin/includes/include_once.php:4) in /home/virtual/site486/fst/var/www/html/storeadmin/configuration.php on line 6
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Thanks for your help!

[michael_s]

First check your paths in the /admin/includes/configure.php and make sure they are correct and actually point to the correct locations on the server.