Florence is fully compatible with Divi v4.14+, just make sure that you’ve installed the latest version of the Divi theme. Some features may not work correctly if the Divi theme version is less than v4.14.
Fresh Installation of WordPress (Recommended)
Server Recommended Requirements
upload_max_filesize (512M or more)
max_input_time (300 or more)
memory_limit (512M or more)
max_execution_time (1000 or more)
These are just recommended values. If you've got a Congrats Message in your Divi -> Support Center, then you're good to go; please Contact your hosting support and ask them to increase these values if you don't have a Congrats message in Divi Support Center.