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
You can verify your PHP configuration limits by installing a simple plugin called WordPress phpinfo.