diff --git a/source/de/anomic/plasma/crawler/AbstractCrawlWorker.java b/source/de/anomic/plasma/crawler/AbstractCrawlWorker.java
index f46b3cfae..7889df481 100644
--- a/source/de/anomic/plasma/crawler/AbstractCrawlWorker.java
+++ b/source/de/anomic/plasma/crawler/AbstractCrawlWorker.java
@@ -47,6 +47,7 @@
 
 package de.anomic.plasma.crawler;
 
+import java.io.File;
 import java.io.IOException;
 
 import de.anomic.index.indexURL;
@@ -277,5 +278,9 @@ public abstract class AbstractCrawlWorker extends Thread implements plasmaCrawlW
         
         // push it onto the stack
         this.sb.urlPool.errorURL.stackPushEntry(ee);
+        
+        // delete the cache file
+        File cacheFile = this.cacheManager.getCachePath(this.url);
+        if (cacheFile.exists()) cacheFile.delete();
     }    
 }
diff --git a/source/de/anomic/plasma/crawler/http/CrawlWorker.java b/source/de/anomic/plasma/crawler/http/CrawlWorker.java
index 2a27aaddc..54c1a8a60 100644
--- a/source/de/anomic/plasma/crawler/http/CrawlWorker.java
+++ b/source/de/anomic/plasma/crawler/http/CrawlWorker.java
@@ -454,6 +454,7 @@ public final class CrawlWorker extends AbstractCrawlWorker {
                 return load(crawlingRetryCount - 1);
             }
             if (failreason != null) {
+                // add url into error db
                 addURLtoErrorDB(failreason);
             }
             return null;
diff --git a/source/de/anomic/plasma/plasmaSwitchboard.java b/source/de/anomic/plasma/plasmaSwitchboard.java
index bee903ef9..44e6c8826 100644
--- a/source/de/anomic/plasma/plasmaSwitchboard.java
+++ b/source/de/anomic/plasma/plasmaSwitchboard.java
@@ -1749,6 +1749,10 @@ public final class plasmaSwitchboard extends serverAbstractSwitch implements ser
                 }
             }
             document = null;
+        } catch (Exception e) {
+            this.log.logSevere("Unexpected exception while parsing/indexing URL ",e);
+        } catch (Error e) {
+            this.log.logSevere("Unexpected exception while parsing/indexing URL ",e);
         } finally {
             checkInterruption();