I'm using Joomla 1.5.22 and 3.7.6 of the JoomSEF component. I have several menus with the blog category layout. The page numbers that appear on the number are still numbered correctly:

Start Previous 1, 2, 3, etc. Next End

However, the links for each page skip numbers. If I hover the mouse over each number, I get this:

Page 1: blog.html
Page 2: blog/2.html
Page 3: blog/4.html
Page 4: blog/6.html
Page 5: blog/8.html

If I go to blog/3.html, I get articles that do not appear when clicking the page numbers. I'd appreciate some help with this. Thanks!

I'm currently using 3.2.1 and I'm trying to upgrade to the latest version. When I try to upgrade, I get this error:

File does not exist in upgrade package: /site/sef_ext/com_docman.xml

I'm not using DocMa; but, I do know it's a plugin for JoomSEF. Thanks!