try bug fix in purge

.idea/Geeksbot.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+  <component name="TestRunnerService">
+    <option name="PROJECT_TEST_RUNNER" value="Unittests" />
+  </component>
+</module>

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.6 (Geeksbot)" project-jdk-type="Python SDK" />
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/Geeksbot.iml" filepath="$PROJECT_DIR$/.idea/Geeksbot.iml" />
+    </modules>
+  </component>
+</project>

src/exts/utils.py

@@ -533,6 +533,9 @@ class Utils:
                 return True
             prefixes = self.bot.loop.create_task(self.bot.db_con.fetchval('select prefix from guild_config '
                                                                           'where guild_id = $1', ctx.guild.id))
+            while not prefixes.done():
+                pass
+            prefixes = prefixes.result()
             if prefixes:
                 for prefix in prefixes:
                     if message.content.startswith(prefix):