Dear all, we have a site that uses K2 modules. After migration from apache to IIS 7.5 several problems have arrised, and I really don't know how to fix them
Some of them are.
1) In pages where in a K2 article I try to embed video like this one www.prismanews.gr/index.php/crete/item/8974-ierapetra-kleinoun-to-dhmarxeio several warnings appear that I really don't know what this is.
2) In some cases when I try to upload images I get the following error "Not a valid image."

Thank you In advance
Any help will be appreciated

Hi. Regarding your questions:

1. This is caused by your PHP setup. You need to disable this or modify it.
2. Are you getting this error on K2 or in general in Joomla! . Try to update PHP to the latest possible version ( 5.3 is highly recommended ). This issue probably indicates that your server fails to detect the mime type of the file. Another solution may be to upload the file with a different browser.

1) I didn't understand your response. What do I have to disable?
2)Currently I have php 5.2

1. It's a setting og PHP. You can find more on this if you search the official PHP website at php.net

2. If you are able, update to 5.3.