15572 [ZAP-daemon] ERROR org.zaproxy.addon.client.ExtensionClientIntegration - null
java.lang.NullPointerException: null
at org.zaproxy.addon.client.ExtensionClientIntegration.postInit(ExtensionClientIntegration.java:109) [client-alpha-0.2.0.zap:?]
at org.parosproxy.paros.extension.ExtensionLoader.hookAllExtension(ExtensionLoader.java:956) [zap-2.13.0.jar:2.13.0]
at org.parosproxy.paros.extension.ExtensionLoader.startLifeCycle(ExtensionLoader.java:800) [zap-2.13.0.jar:2.13.0]
at org.parosproxy.paros.control.AbstractControl.loadExtension(AbstractControl.java:58) [zap-2.13.0.jar:2.13.0]
at org.parosproxy.paros.control.Control.init(Control.java:156) [zap-2.13.0.jar:2.13.0]
at org.parosproxy.paros.control.Control.initSingletonWithoutView(Control.java:389) [zap-2.13.0.jar:2.13.0]
at org.zaproxy.zap.HeadlessBootstrap.initControl(HeadlessBootstrap.java:59) [zap-2.13.0.jar:2.13.0]
at org.zaproxy.zap.DaemonBootstrap$1.run(DaemonBootstrap.java:75) [zap-2.13.0.jar:2.13.0]
at java.lang.Thread.run(Thread.java:829) [?:?]
15581 [ZAP-daemon] WARN org.zaproxy.addon.network.ExtensionNetwork - ZAP's Root CA certificate has expired as of Sat Aug 26 14:11:17 CEST 2023 (now: Mon Oct 02 14:46:19 CEST 2023).
You should regenerate it and re-install it in your browsers.
Regenerate the certificate and go to the relevant options screen now?