diff --git a/docker-compose.test.yml b/docker-compose.test.yml
index a044305..c45cd1f 100644
--- a/docker-compose.test.yml
+++ b/docker-compose.test.yml
@@ -24,6 +24,7 @@ services:
     volumes:
       - ./tests/docker/coffee/config:/etc/config
       - ./tests/docker/coffee/data:/etc/socialbox
+      - ./tests/docker/coffee/logs:/var/log
     environment:
       # No need to change these values
       LOG_LEVEL: ${LOG_LEVEL:-debug}
@@ -125,6 +126,7 @@ services:
     volumes:
       - ./tests/docker/teapot/config:/etc/config
       - ./tests/docker/teapot/data:/etc/socialbox
+      - ./tests/docker/teapot/logs:/var/log
     environment:
       # No need to change these values
       LOG_LEVEL: ${LOG_LEVEL:-debug}
diff --git a/src/Socialbox/Classes/RpcClient.php b/src/Socialbox/Classes/RpcClient.php
index f65c850..5892116 100644
--- a/src/Socialbox/Classes/RpcClient.php
+++ b/src/Socialbox/Classes/RpcClient.php
@@ -481,7 +481,7 @@
                     publicKey: $this->serverPublicSigningKey,
                 ))
                 {
-                    throw new RpcException('Failed to verify the response signature');
+                    throw new RpcException('The response signature cannot be verified with the server\'s public signing key');
                 }
             }
             catch (CryptographyException $e)
diff --git a/tests/Socialbox/SocialClientSessionTest.php b/tests/Socialbox/SocialClientSessionTest.php
deleted file mode 100644
index 6afd378..0000000
--- a/tests/Socialbox/SocialClientSessionTest.php
+++ /dev/null
@@ -1,9 +0,0 @@
-<?php
-
-    namespace Socialbox;
-
-    use PHPUnit\Framework\TestCase;
-
-    class SocialClientSessionTest extends TestCase
-    {
-    }
\ No newline at end of file