Out of Memory (PHP project)

Started today Netbeans and it asked to report bug which happened yesterday.

What happened? Worked on a big PHP file (12k lines of code) after switching project from PHP 7.0 to PHP 8.0 and tried to format it. I haven't liked result and undid it (Ctrl-Z), since that IDE started to lag, but worked with more and more degraded performance. Soon I've closed it.

Not sure where to put this:

<record>
<date>2021-05-29T09:29:56</date>
<millis>1622269796015</millis>
<sequence>518</sequence>
<level>700</level>
<thread>98</thread>
<message>UI_USER_CONFIGURATION</message>
<key>UI_USER_CONFIGURATION</key>
<catalog>org.netbeans.modules.uihandler.Bundle</catalog>
<param>Linux, 4.9.0-15-amd64, amd64</param>
<param>OpenJDK 64-Bit Server VM, 25.292-b10, OpenJDK Runtime Environment, 1.8.0_292-8u292-b10-0+deb9u1-b10</param>
<param>Apache NetBeans IDE 12.3</param>
<param></param>
<param>OutOfMemoryError: GC overhead limit exceeded</param>
<param><Please provide a description of the problem or the steps to reproduce></param>
<param>*********</param>
</record>