yesterday all miners work ok, today I get error  out of memory, any Idea why is that?
I have download new version 36 and it is the same.

[11:34:22] INFO - ------------------- Device -------------------
[11:34:22] INFO - |ID|PCI| CC|Memory|CU|
[11:34:22] INFO - *| 0| 10| 800| 4096M|32| Radeon RX 570 Series
[11:34:22] INFO - ----------------------------------------------
[11:34:22] INFO - ethash - Logging in to daggerhashimoto.eu.nicehash.com:3353 ...
[11:34:22] INFO - ethash - Login succeeded.
[11:34:22] INFO - ethash - New job: daggerhashimoto.eu.nicehash.com:3353, ID: 1cdbe62e, DIFF: 2.877G
C:\nbminer>[11:34:24] INFO - Device 0 started, Free mem = 4096 MB.
[11:34:26] INFO - ethash - New job: daggerhashimoto.eu.nicehash.com:3353, ID: 1cdbe62f, DIFF: 2.877G
[11:34:27] INFO - Light cache built, 2.70 s.
[11:34:28] INFO - ethash - New job: daggerhashimoto.eu.nicehash.com:3353, ID: 1cdbe630, DIFF: 2.877G
[11:34:28] INFO - Device 0: DAG - Building, EPOCH 385
[11:34:28] ERROR - Device 0: out of memory