Hi,
To be sure that the memory limit was increased, check what value is shown in WooCommerce > Status, for example – https://prnt.sc/tuk2jf
Massive Addons plugin is not obligatory, it is used to create some specific content blocks. Try to disable the plugin and check the frontend, if there is no code shown and all blocks are on places, you can keep the plugin disabled. If some blocks are shown as shortcodes, you can delete them via backend.
Regards