Some urgent questions

I have sent these questions to info@orientdb.com but my email didn’t delivered there so I end here in the hope of getting my questions to be answered.
Anyone who is well versed with OrientDB please reply yo me

1)Is this MMDB suitable for a small ecommerce website (which may scale at a later stage)?

2)What is minimum RAM and CPU cores are required so it functions at optimum level.

3)Only an introductory level of information is provided in the Udemy course which is not sufficient to fully use database features. Please tell where I can get detailed information about OrientDB?