Low Memory in IntelliJ IDEA 2021.2.1 (Ultimate Edition)

IntelliJ IDEA 2021.2.1 (Ultimate Edition)
Build #IU-212.5080.55, built on August 24, 2021
Licensed to (I can provide an official license in personal messages)
Subscription is active until February 14, 2022.
Runtime version: 11.0.11+9-b1504.16 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 11.5.2
GC: ParNew, ConcurrentMarkSweep
Memory: 1979M
Cores: 12
Non-Bundled Plugins: com.fwdekker.randomness (2.7.2), Key Promoter X (2021.2), manjaro.mpb (1.6), String Manipulation (8.15.203.000.3), org.sonarlint.idea (5.2.0.35150), GrepConsole (11.10.211.6086.0), MavenRunHelper (4.15.212.000.0), lermitage.intellij.extra.icons (1.61.0.203), org.jetbrains.kotlin (212-1.5.30-release-409-IJ4638.7), izhangzhihao.rainbow.brackets (6.21), zielu.gittoolbox (212.7.7), org.mapstruct.intellij (1.3.0), com.haulmont.jpab (5.3-212)
Kotlin: 212-1.5.30-release-409-IJ4638.7

A memory consumption error occurs periodically.

I suppose third party plugins may be affected,

Can you tell me what could be the matter?