diff --git a/htroot/CrawlProfileEditor_p.java b/htroot/CrawlProfileEditor_p.java
index ef7dd8100..ad0b6777d 100644
--- a/htroot/CrawlProfileEditor_p.java
+++ b/htroot/CrawlProfileEditor_p.java
@@ -91,7 +91,7 @@ public class CrawlProfileEditor_p {
                 if (entry != null) sb.profilesPassiveCrawls.newEntry(entry.map());
                 sb.profilesActiveCrawls.removeEntry(handle);
                 // delete all entries from the crawl queue that are deleted here
-                sb.crawlQueues.noticeURL.removeByProfileHandle(handle);
+                sb.crawlQueues.noticeURL.removeByProfileHandle(handle, 10000);
             }
             if (post.containsKey("delete")) {
                 // deletion of a terminated crawl profile
diff --git a/source/de/anomic/crawler/Balancer.java b/source/de/anomic/crawler/Balancer.java
index 9436795de..450f31c0a 100644
--- a/source/de/anomic/crawler/Balancer.java
+++ b/source/de/anomic/crawler/Balancer.java
@@ -167,7 +167,7 @@ public class Balancer {
        return new CrawlEntry(entry);
     }
     
-    public synchronized int removeAllByProfileHandle(String profileHandle) throws IOException {
+    public synchronized int removeAllByProfileHandle(String profileHandle, long timeout) throws IOException {
         // removes all entries with a specific profile hash.
         // this may last some time
         // returns number of deletions
@@ -177,7 +177,8 @@ public class Balancer {
         HashSet<String> urlHashes = new HashSet<String>();
         kelondroRow.Entry rowEntry;
         CrawlEntry crawlEntry;
-        while (i.hasNext()) {
+        long terminate = (timeout > 0) ? System.currentTimeMillis() + timeout : Long.MAX_VALUE;
+        while (i.hasNext() && (System.currentTimeMillis() < terminate)) {
             rowEntry = (kelondroRow.Entry) i.next();
             crawlEntry = new CrawlEntry(rowEntry);
             if (crawlEntry.profileHandle().equals(profileHandle)) {
diff --git a/source/de/anomic/crawler/CrawlProfile.java b/source/de/anomic/crawler/CrawlProfile.java
index f597bf891..a23bba5eb 100644
--- a/source/de/anomic/crawler/CrawlProfile.java
+++ b/source/de/anomic/crawler/CrawlProfile.java
@@ -72,7 +72,7 @@ public class CrawlProfile {
         profileTable = new kelondroMapObjects(dyn, 500);
     }
     
-    void resetDatabase() {
+    public void resetDatabase() {
         // deletes the profile database and creates a new one
         if (profileTable != null) profileTable.close();
         if (!(profileTableFile.delete())) throw new RuntimeException("cannot delete crawl profile database");
diff --git a/source/de/anomic/crawler/NoticedURL.java b/source/de/anomic/crawler/NoticedURL.java
index 8300b125f..d113e60ca 100755
--- a/source/de/anomic/crawler/NoticedURL.java
+++ b/source/de/anomic/crawler/NoticedURL.java
@@ -174,11 +174,11 @@ public class NoticedURL {
         return false;
     }
     
-    public int removeByProfileHandle(String handle) {
+    public int removeByProfileHandle(String handle, long timeout) {
         int removed = 0;
-        try {removed += coreStack.removeAllByProfileHandle(handle);} catch (IOException e) {}
-        try {removed += limitStack.removeAllByProfileHandle(handle);} catch (IOException e) {}
-        try {removed += remoteStack.removeAllByProfileHandle(handle);} catch (IOException e) {}
+        try {removed += coreStack.removeAllByProfileHandle(handle, timeout);} catch (IOException e) {}
+        try {removed += limitStack.removeAllByProfileHandle(handle, timeout);} catch (IOException e) {}
+        try {removed += remoteStack.removeAllByProfileHandle(handle, timeout);} catch (IOException e) {}
         return removed;
     }
     
diff --git a/source/de/anomic/plasma/plasmaSwitchboard.java b/source/de/anomic/plasma/plasmaSwitchboard.java
index 8e0a5c0ff..f44040411 100644
--- a/source/de/anomic/plasma/plasmaSwitchboard.java
+++ b/source/de/anomic/plasma/plasmaSwitchboard.java
@@ -1475,16 +1475,27 @@ public final class plasmaSwitchboard extends serverAbstractSwitch<plasmaSwitchbo
         Iterator<CrawlProfile.entry> i = this.profilesActiveCrawls.profiles(true);
         CrawlProfile.entry profile;
         String name;
-        while (i.hasNext()) {
-            profile = i.next();
-            name = profile.name();
-            if (name.equals(CRAWL_PROFILE_PROXY)) this.defaultProxyProfile = profile;
-            if (name.equals(CRAWL_PROFILE_REMOTE)) this.defaultRemoteProfile = profile;
-            if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT)) this.defaultTextSnippetLocalProfile = profile;
-            if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT)) this.defaultTextSnippetGlobalProfile = profile;
-            if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA)) this.defaultMediaSnippetLocalProfile = profile;
-            if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)) this.defaultMediaSnippetGlobalProfile = profile;
+        try {
+            while (i.hasNext()) {
+                profile = i.next();
+                name = profile.name();
+                if (name.equals(CRAWL_PROFILE_PROXY)) this.defaultProxyProfile = profile;
+                if (name.equals(CRAWL_PROFILE_REMOTE)) this.defaultRemoteProfile = profile;
+                if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT)) this.defaultTextSnippetLocalProfile = profile;
+                if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT)) this.defaultTextSnippetGlobalProfile = profile;
+                if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA)) this.defaultMediaSnippetLocalProfile = profile;
+                if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)) this.defaultMediaSnippetGlobalProfile = profile;
+            }
+        } catch (Exception e) {
+            this.profilesActiveCrawls.resetDatabase();
+            this.defaultProxyProfile = null;
+            this.defaultRemoteProfile = null;
+            this.defaultTextSnippetLocalProfile = null;
+            this.defaultTextSnippetGlobalProfile = null;
+            this.defaultMediaSnippetLocalProfile = null;
+            this.defaultMediaSnippetGlobalProfile = null;
         }
+        
         if (this.defaultProxyProfile == null) {
             // generate new default entry for proxy crawling
             this.defaultProxyProfile = this.profilesActiveCrawls.newEntry("proxy", null, ".*", ".*",