diff --git a/grpcclient/build.sbt b/grpcclient/build.sbt
index bd138b7da..3b974e6dc 100644
--- a/grpcclient/build.sbt
+++ b/grpcclient/build.sbt
@@ -7,7 +7,7 @@ libraryDependencies ++= Seq(
   "io.grpc" % "grpc-stub" % "1.12.0",
   "org.apache.logging.log4j" % "log4j-api" % "2.11.0",
   "org.apache.logging.log4j" % "log4j-core" % "2.11.0",
-  "com.trueaccord.scalapb" %% "scalapb-json4s" % "0.3.2"
+  "com.thesamet.scalapb" %% "scalapb-json4s" % "0.7.0"
 )
 
 unmanagedBase <<= baseDirectory { base => base / ".." / "lib" }
diff --git a/grpcclient/src/main/scala/org/vitrivr/adampro/communication/RPCClient.scala b/grpcclient/src/main/scala/org/vitrivr/adampro/communication/RPCClient.scala
index 3526906cf..c636bc18d 100644
--- a/grpcclient/src/main/scala/org/vitrivr/adampro/communication/RPCClient.scala
+++ b/grpcclient/src/main/scala/org/vitrivr/adampro/communication/RPCClient.scala
@@ -2,7 +2,7 @@ package org.vitrivr.adampro.communication
 
 import java.util.concurrent.TimeUnit
 
-import com.trueaccord.scalapb.json.JsonFormat
+import scalapb.json4s.JsonFormat
 import io.grpc.internal.DnsNameResolverProvider
 import io.grpc.netty.NettyChannelBuilder
 import io.grpc.stub.StreamObserver
diff --git a/web/src/main/scala/org/vitrivr/adampro/web/controller/AdamController.scala b/web/src/main/scala/org/vitrivr/adampro/web/controller/AdamController.scala
index 7638deb45..17aab22eb 100644
--- a/web/src/main/scala/org/vitrivr/adampro/web/controller/AdamController.scala
+++ b/web/src/main/scala/org/vitrivr/adampro/web/controller/AdamController.scala
@@ -349,6 +349,7 @@ class AdamController(rpcClient: RPCClient) extends Controller with Logging {
     if (res.isSuccess) {
       response.ok.json(new SearchCompoundResponse(200, new SearchResponse(res.get)))
     } else {
+      log.error(res.failed.get.getMessage)
       response.ok.json(GeneralResponse(500, res.failed.get.getMessage))
     }
   }