I saw today on "Mining Pool Stats" that Prohashing found an Ethereum block after 3 days of searching.
During that 3 days I was mining PPLNS .
2 questions:
1.) I was not paid out any share of that block reward. Was it solo mined?
2.) "Block reward for ETH = 2.0 but the Prohashing mining page says Block reward = 6.36988694 ETH - What does this mean?
- as the picture shows below-

Please shine some light on this experience and educate an old teacher.

Thank you for your time