When too many large files are uploaded to the server the following error may appear:

You have sent too much data (too many large files?) for the server to process. Please try again by sending less data/files at a time.

To allow large amount of data upload the following php.ini file settings must be set properly:

• upload_max_filesize: The maximum size of a file which can be uploaded. b2evolution ‘Maximum upload file size’ settings must be set to a lower or equal value than this PHP setting.
• post_max_size: The maximum size of a post request. This value must be always bigger than the ‘upload_max_filesize’ setting. When multiple files are uploaded with one request, than the amount of the files size must be lower than this value.
• memory_limit: The b2evolution use image processing algorithms which requires to load the images into the memory. When large image file upload is enabled, the ‘memory_limit’ must be set to a very large value in order to avoid "Allowed memory size exhauseted" PHP errors.