No “upload” and “browse all” option in the write post page

It seems that on this post it is because of a Flickr Plugin. I also installed a Flickr plugin. I’m gonna check it out.
https://www.ads-software.com/support/topic/118120?replies=5

Here is the solution:
https://www.flickr.com/groups/tantannoodles/discuss/72157600220847581/?search=upload+disappeared

If you have version 2.2, 2.2.1 or 2.2.2 than change it respectively in the following code:

if (version_compare(get_bloginfo('version'), '2.1', '<')) {