When discussing Erica Flynn, Lisbon mentions Erica broke out of prison a year ago. She actually broke out of prison months before Jane killed Red John, which was already more than 2 years ago, by ep. 3 of season 7.
In Slovakian language the name NEMEC would not be pronounced with "K" at the end, but rather with "TS". As Americans may do this by mistake, he himself would never pronounce his name this way.
The team stake out the bar in Atlanta after dark, which would be at least after 8pm in the Summer - we know it is Summer since the episode closes with the end of Ramadan. Directly after, Lisbon and Jane are having dinner in Beirut, +7 hours, so at least 3am.
When Erica says thank you so much "shukran jazelan" to the room service guy, Lisbon asks if she speaks Lebanese. While closely related to the Arabic spoken in other parts of the Middle East, Lebanese Arabic has a different structure and normally referred to as Lebanese rather than Arabic.
The plot revolved about passport chips, which refers to RFID chips. The prop used for the chips were actually micro SD cards.
Teresa says Erica escaped about a year ago, however, Erica escaped a long while before Patrick caught Red John and then he was in hiding for two years so Erica escaped at least two years earlier and probably at least 3 years earlier.