ERROR twisted SSL error: sslv3 alert certificate unknown (in ssl3_read_bytes)

[ederenn]

Description

Golem Version: 0.23.0 and 0.22.2+dev40.gc2d81e8

Golem-Messages version (leave empty if unsure):

Electron version (if used): 0.2.6

OS [e.g. Windows 10 Pro]: Ubuntu 18.04

Branch (if launched from source):

Mainnet/Testnet: mainnet

Priority label is set to the lowest by default. To setup higher priority please change the label
P0 label is set for Severity-Critical/Effort-easy
P1 label is set for Severity-Critical/Effort-hard
P2 label is set for Severity-Low/ Effort-easy
P3 label is set for Severity-Low/Effort-hard

Description of the issue:

When running the node (requesting included) in logs several times appeared an error:
ERROR twisted SSL error: sslv3 alert certificate unknown (in ssl3_read_bytes)

Logs and any additional context

2020-05-07 17:08:49 INFO     golem.ethereum.paymentprocessor     Restoring awaiting payment for subtask ee605446-9062-11ea-baa3-1274b1e2bbea to 0x509Bc6a8C45e7e000c13Bde40AE69263F4E58996 of 0.008333 GNTB
2020-05-07 17:08:49 INFO     golem.ethereum.paymentprocessor     Restoring awaiting payment for subtask 00209ee6-9071-11ea-9025-1274b1e2bbea to 0x74197C3c1Fa2211cc98cFA3E696502ebA52707a9 of 0.008333 GNTB
2020-05-07 17:08:49 INFO     golem.ethereum.paymentprocessor     Restoring awaiting payment for subtask 00ceb5c0-9071-11ea-bf35-1274b1e2bbea to 0x2AC383335cEFdaF9945807d92115F36FFB9B2C89 of 0.008333 GNTB
2020-05-07 17:08:49 INFO     golem.ethereum.paymentprocessor     Restoring awaiting payment for subtask b7990e7e-9071-11ea-8c89-1274b1e2bbea to 0x259234523937C9a88FC22Ba7d152d5072a3ACB61 of 0.004334 GNTB
2020-05-07 17:08:55 INFO     golem.ethereum.transactionsystem    Initial balances: 2.254330 GNTB, 0.000000 GNT, 0.008873 ETH
2020-05-07 17:09:02 INFO     golem.ethereum.paymentprocessor     Next sendout at 2020-05-08 12:32:35.578388+00:00
2020-05-07 17:09:02 ERROR    twisted                             SSL error: sslv3 alert certificate unknown (in ssl3_read_bytes)
2020-05-07 17:09:02 INFO     golem.environments.environmentsmanager Adding environment BLENDER supported=<SupportStatus ok ({})>
2020-05-07 17:09:02 INFO     golem.environments.environmentsmanager Adding environment BLENDER_NVGPU supported=<SupportStatus err ({<UnsupportReason.ENVIRONMENT_UNSUPPORTED: 'environment_unsupported'>: 'BLENDER_NVGPU'})>
2020-05-07 17:09:02 INFO     golem.environments.environmentsmanager Adding environment WASM supported=<SupportStatus ok ({})>
2020-05-07 17:09:02 INFO     golem.core.simpleconfig             Reading config from file /home/ederenn/.local/share/golem/default/mainnet/environments.ini ... successfully

Proposed Solution?

(Optional: What could be a solution for that issue)