Error filtering (Tom Clancy's The Division)

All kind time of day!

Faced with such garbage - I started playing not so long ago, but to pump up to LVL 30, put not a bad armor, Orozco and go into a Dark Area... There are descents in the subway, the infected, and I with 4-level mask freely going down there... But now when I go down, a message appears"error filtering, running out of oxygen and I'm dying... it's not even written what LVL is required and what level of contamination is not increased, as is usually the case... and it's all on stage 5... then I switched to stage 1, and there was a message that we need level 9 mask... is this a glitch of some kind?! explain the pancreas, found nothing about it... all I found is the higher 4 levels no mask... but there's already 9 asked... and here is the second day I can't get down to the contaminated zone in the TOR...

Thank you for your attention!