diff --git a/source/de/anomic/plasma/plasmaCrawlBalancer.java b/source/de/anomic/plasma/plasmaCrawlBalancer.java
index 27db45186..bc29b019c 100644
--- a/source/de/anomic/plasma/plasmaCrawlBalancer.java
+++ b/source/de/anomic/plasma/plasmaCrawlBalancer.java
@@ -465,10 +465,12 @@ public class plasmaCrawlBalancer {
         assert delta >= 0: "delta = " + delta;
         int s = urlFileIndex.size();
         kelondroRow.Entry rowEntry = urlFileIndex.remove(result.getBytes(), false);
-        assert urlFileIndex.size() + 1 == s : "urlFileIndex.size() = " + urlFileIndex.size() + ", s = " + s + ", result = " + result;
+        assert (rowEntry != null) && (urlFileIndex.size() + 1 == s) : "urlFileIndex.size() = " + urlFileIndex.size() + ", s = " + s + ", result = " + result;
         if (rowEntry == null) {
             serverLog.logSevere("PLASMA BALANCER", "get() found a valid urlhash, but failed to fetch the corresponding url entry - total size = " + size() + ", fileStack.size() = " + urlFileStack.size() + ", ramStack.size() = " + urlRAMStack.size() + ", domainStacks.size() = " + domainStacks.size());
             return null;
+        } else {
+            assert urlFileIndex.size() + 1 == s : "urlFileIndex.size() = " + urlFileIndex.size() + ", s = " + s + ", result = " + result;
         }
         plasmaCrawlEntry crawlEntry = new plasmaCrawlEntry(rowEntry);
         long minimumDelta = (crawlEntry.url().isLocal()) ? minimumLocalDelta : minimumGlobalDelta;
diff --git a/source/de/anomic/yacy/yacyURL.java b/source/de/anomic/yacy/yacyURL.java
index d63e343ac..2e456eb2d 100644
--- a/source/de/anomic/yacy/yacyURL.java
+++ b/source/de/anomic/yacy/yacyURL.java
@@ -403,7 +403,14 @@ public class yacyURL {
         assert (url != null);
         url = url.trim();
         int p = url.indexOf(':');
-        if (p < 0) throw new MalformedURLException("protocol is not given in '" + url + "'");
+        if (p < 0) {
+            if (url.startsWith("www.")) {
+                url = "http://" + url;
+                p = 4;
+            } else {
+                throw new MalformedURLException("protocol is not given in '" + url + "'");
+            }
+        }
         this.protocol = url.substring(0, p).toLowerCase().trim();
         if (url.length() < p + 4) throw new MalformedURLException("URL not parseable: '" + url + "'");
         if (url.substring(p + 1, p + 3).equals("//")) {