your web server is configured with PHP settings that are too low for a theme with several plugins. Specifically max_execution_time and memory_limit. Thus, the web server is rejecting to save the theme options. This is not a theme fault or bug.

You can get your web hosting company to increase your PHP limits. 

Recommended PHP configuration limits are as follows:

max_execution_time 120

memory_limit 256M

post_max_size 32M

upload_max_filesize 32M