MassiveAddons plugin has some requirements in terms of server where he can work without problem:

• PHP version above  5.4 , MA is PHP 7 ready
• Memory Limit above  96M  ( 128M  is a recommended value)
• Maximum Execution Time:  300  or more seconds (for demo import and presets management)
• Visual Composer  4.9+ 

Those values above are your recommendation and we can guarantee that our plugin will work fine at those settings.

Please also notice that Memory Limit consumption can be larger in some circumstances like:

• more complex plugins like WooCommerce
• a huge number of presets installed
• a huge amount of WordPress content