catch 住异常，防止这一块死循环

designer-base/src/main/java/com/fr/env/detect/thowable/ThrowableLogAppender.java

@@ -33,12 +33,15 @@ public class ThrowableLogAppender extends AbstractAppender {
     @Override
     public void append(LogEvent logEvent) {
     
+        try {
             if (logEvent.getLevel() == Level.ERROR) {
                 Throwable thrown = logEvent.getThrown();
                 if (thrown != null) {
                     ThrowableStore.getInstance().add(thrown);
                 }
             }
+        } catch (Throwable ignore) {
+        }
     }
     
     private LogHandler<ThrowableLogAppender> toHandler() {