Periodically Plesk panel is not accessible, services like SMTP, POP, MySQL are stopping, application pools are crashing.
The following error may be found in Windows Event Viewer > Custom Views > Administrative Events:
CONFIG_TEXT: Log Name: SystemSource: Microsoft-Windows-Resource-Exhaustion-Detector
Date: 25/10/2017 09:29:48
Event ID: 2004
Task Category: Resource Exhaustion Diagnosis Events
Keywords: Events related to exhaustion of system commit limit (virtual memory).
Windows successfully diagnosed a low virtual memory condition. The following programs consumed the most virtual memory: mysqld.exe (28676) consumed 5880086528 bytes, w3wp.exe (7620) consumed 1445138432 bytes, and MEIMAPS.EXE (28260) consumed 585797632 bytes.
Not enough RAM or virtual memory to handle services.