Problem with admin storefront link

[DarkAngel]

When I use the bookmark to go to the front end of the store it loads fine and quick

when I use the backend link for the storefront I get a white page.

http://www.designerperfumesnob.com/index.php?main_page=

It is not nested in another folder it is root level of the files.

this is the log file

[21-Aug-2015 02:30:38 America/Chicago] PHP Warning: htmlspecialchars(): Invalid multibyte sequence in argument in admin/includes/modules/product/collect_info.php on line 410

I have used it back there before. 1.5.4 version

there is also another error in the log area:

[14-Sep-2015 01:52:17 America/Chicago] PHP Warning: Cannot modify header information - headers already sent by (output started at includes/extra_configures/security_patch_v154_and_older.php:1) in Unknown on line 0

The only thing new is the patch that was copy/pasted then added to the server

-------------------------

BTW, it cause my own store to get an error to but I can't remember what it was right now. As soon as I deactivated the file the store was working again....my store is still 1.3.9h for now

[lruskauff]

When I use the bookmark to go to the front end of the store it loads fine and quick

when I use the backend link for the storefront I get a white page.

http://www.designerperfumesnob.com/index.php?main_page=

It is not nested in another folder it is root level of the files.

this is the log file

[21-Aug-2015 02:30:38 America/Chicago] PHP Warning: htmlspecialchars(): Invalid multibyte sequence in argument in admin/includes/modules/product/collect_info.php on line 410

I have used it back there before. 1.5.4 version

there is also another error in the log area:

[14-Sep-2015 01:52:17 America/Chicago] PHP Warning: Cannot modify header information - headers already sent by (output started at includes/extra_configures/security_patch_v154_and_older.php:1) in Unknown on line 0

The only thing new is the patch that was copy/pasted then added to the server

-------------------------

BTW, it cause my own store to get an error to but I can't remember what it was right now. As soon as I deactivated the file the store was working again....my store is still 1.3.9h for now

Try this:
https://www.zen-cart.com/content.php...s-already-sent

Look in that file you edited. That first error was from back in August.

[mc12345678]

For some reason, when individuals have been applyiing the new security patch, they have either 1) added a space before the first <?php or 2) not removed it after or as part of pasting the new security patch.

Problem is/was in: includes/extra_configures/security_patch_v154_and_older.php