Upgrade error 1.9.2.4 to Magento 1.9.4.5

[HostOnNet]

I tried to upgrade 1.9.2.4 to Magento 1.9.4.5

I added the below code index.php to debug and iI got the below. How to fix this ?

Array
(
[type] => 64
[message] => require_once(): Failed opening required 'minify/Minify/Build.php' (include_path='/home/user/public_html/lib/minify:/home/usr/public_html/app/code/local:/home/usr/public_html/app/code/community:/home/usr/public_html/app/code/core:/home/usr/public_html/lib:.:/opt/cpanel/ea-php56/root/usr/share/pear')
[file] => /home/usr/public_html/app/code/community/Fooman/Speedster/Model/BuildSpeedster.php
[line] => 10
)

[HostOnNet]

Fixed by deleting foomanSpeedster in  public_html/app/etc/modules. But not able to login to admin area. When I enter password and click submit nothing showing.

I changed theme to default via phpmyadmin but still same.

[HostOnNet]

Menu is not showing after upgrade