diff --git a/bin/thumb_server.sh b/bin/thumb_server.sh
index 7584a76..42009f5 100755
--- a/bin/thumb_server.sh
+++ b/bin/thumb_server.sh
@@ -8,7 +8,7 @@ hashUrl=$2 # hash(url) is the name of final image
 thumbSize=$3 # size of thumb widthxheight ex : 190x90
 onlyThumb=$4 # make only thumbshot no full size image 
 waitForResult=$5 # if true we try to make soon as possible or add to queue
-maxThread=3 # max parralle work. For me the best is nb core - 1
+maxThread=1 # max parralle work. For me the best is nb core - 1
 timeOut=60 # default time out after this time the site are declared in error
 log=false # log all generation success and error
 randomSleep=`echo $((RANDOM%20))`
@@ -20,9 +20,9 @@ secondLevel=${hashUrl:2:2}
 startPath=$firstLevel/$secondLevel/
 mkdir -p "cache/img/$startPath"
 
-if [ ! -f "cache/config/serverOptions.php" ]
+if [ -f "../cache/config/serverOptions.php" ]
 then
-    source "cache/config/serverOptions.php"
+    source "../cache/config/serverOptions.php"
 fi
 
 if [ $currentProcess -gt $maxQueue ]