Error after upgrade to 3.00.31

[Emerson]

Hello Guys,

I have attempted to upgrade from 3.0.12 to 3.0.31 and after the upgrade is done I can not login to either staff, user or admin areas.

I get the error:
Warning: Cannot modify header information - headers already sent by (output started at /home/user/public_html/my/support/swift.php:254) in /home/user/public_html/my/support/includes/functions.php on line 1571

Warning: Cannot modify header information - headers already sent by (output started at /home/user/public_html/my/support/swift.php:254) in /home/user/public_html/my/support/includes/functions.php on line 1571

and it returns to the login screen.
Any ideas?

[Success]

I'm getting the same error now. Have u solved it?

[Mellco]

I am testing .32 and got the same error. Since I was testing, I did not delete the setup directory.

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/www/vhosts/tradezone.com/htdocs/support2/swift.php:517) in /usr/local/www/vhosts/tradezone.com/htdocs/support2/includes/functions.php on line 1571

Deleting the setup directory fixed it for me.

Mellco

[Success]

For my case, I deleted my setup directory but I still get that error.

Contacted support, wait a few days and the problem was fixed after support edited my license file key.php

Apparently, the data key.php was wrongly entered.

I upload the key.php again and the problem was solved.

Hope this helps other fellow users with this issue.

Reminder, key.php should be uploaded in binary format.

[tomaz]

Originally Posted by Success

For my case, I deleted my setup directory but I still get that error.

Contacted support, wait a few days and the problem was fixed after support edited my license file key.php

Apparently, the data key.php was wrongly entered.

I upload the key.php again and the problem was solved.

Hope this helps other fellow users with this issue.

Reminder, key.php should be uploaded in binary format.

Got the same problem, I hope your solution will help. Anyway, thank you in advance.