diff --git a/stable.user.js b/stable.user.js
index 5a2b6d8..417aa1e 100755
--- a/stable.user.js
+++ b/stable.user.js
@@ -311,13 +311,13 @@
         }
       })
     } catch (e) {
-      log("Couldn't get images from result (old)")
+      debugLog("Couldn't get images from result (old)")
     }
   }
 
   function getCurrentSubjectName() {
     if (logElementGetting) {
-      log('getting current subjects name')
+      debugLog('getting current subjects name')
     }
     return document.getElementById('page-header').innerText.split('\n')[0] || ''
   }
@@ -370,7 +370,7 @@
           uid: getUid(),
         }
 
-        log('Sent data', sentData)
+        debugLog('Sent data', sentData)
         post('ask', sentData).then((results) => {
           removeLoadingMessage()
           ShowAnswers(
@@ -394,7 +394,7 @@
       criteria: () => {
         const firstChild =
           document.getElementsByTagName('form')[1].childNodes[0].childNodes[0]
-        if (!firstChild.className.includes('informationitem')) {
+        if (!firstChild || !firstChild.className.includes('informationitem')) {
           return false
         }
         const questionNodes = Array.from(
@@ -454,7 +454,7 @@
               `question nodes ${key} criteria was true, but result is an empty array!`
             )
           } else {
-            log(`Using question node getter variant: ${key}`)
+            debugLog(`Using question node getter variant: ${key}`)
             return true
           }
         }
@@ -741,7 +741,7 @@
               `result nodes ${key} criteria was true, but result is an empty array!`
             )
           } else {
-            log(`Using question node getter variant: ${key}`)
+            debugLog(`Using question node getter variant: ${key}`)
             return true
           }
         }
@@ -796,13 +796,13 @@
       if (getter.requirement(node)) {
         try {
           res = getter.getterFunction(node)
-          log(`[Question getter] Using ${key}`)
+          debugLog(`[Question getter] Using ${key}`)
           return true
         } catch (e) {
-          log(`[Question getter] ${key} failed`)
+          debugLog(`[Question getter] ${key} failed`)
         }
       } else {
-        log(`[Question getter] ${key} did not pass`)
+        debugLog(`[Question getter] ${key} did not pass`)
       }
     })
 
@@ -823,10 +823,9 @@
         const possibleAnswers = getPossibleAnswers(node)
 
         if (!answerPromises || !questionPromises) {
-          log('Answer or question array is empty, skipping question')
+          debugLog('Answer or question array is empty, skipping question')
           resolve({ success: false })
         }
-        console.log({ node: node, questionPromises: questionPromises, answerPromises: answerPromises, possibleAnswers: possibleAnswers })
 
         Promise.all([
           Promise.all(questionPromises),
@@ -1123,7 +1122,7 @@
         ],
       }
 
-      log(sentData)
+      debugLog(sentData)
       post('isAdding', sentData).then((res) => {
         ShowSaveQuizDialog(res.success, sentData, res.totalNewQuestions)
       })
@@ -1162,13 +1161,13 @@
         prevLength = kkerdesElements.length
         clearAllMessages()
         if (determineCurrentSite() === 'TEST') {
-          log('AVR: handling test')
+          debugLog('AVR: handling test')
           handleAVRQuiz(url)
         } else if (determineCurrentSite() === 'RESULT') {
-          log('AVR: handling result')
+          debugLog('AVR: handling result')
           HandleAVRResults(url)
         } else {
-          log('AVR: handling UI')
+          debugLog('AVR: handling UI')
           HandleUI()
         }
       }
@@ -1197,7 +1196,7 @@
         testUrl: url,
       }
 
-      log('Sent data', sentData)
+      debugLog('Sent data', sentData)
       post('ask', sentData).then((results) => {
         removeLoadingMessage()
         ShowAnswers(
@@ -1231,14 +1230,14 @@
 
   function getVideo() {
     if (logElementGetting) {
-      log('getting video stuff')
+      debugLog('getting video stuff')
     }
     return document.getElementsByTagName('video')[0]
   }
 
   function getVideoElement() {
     if (logElementGetting) {
-      log('getting video element')
+      debugLog('getting video element')
     }
     return document.getElementById('videoElement').parentNode
   }
@@ -1416,7 +1415,7 @@
           return false // TODO :insert real url
         },
         action: (url) => {
-          log('Handling canvas quiz')
+          debugLog('Handling canvas quiz')
           handleCanvasQuiz(url)
         },
       },
@@ -1425,7 +1424,7 @@
           return false // TODO :insert real url
         },
         action: (url) => {
-          log('Handling canvas results')
+          debugLog('Handling canvas results')
           HandleCanvasResults(url)
         },
       },
@@ -1434,7 +1433,7 @@
           return false // TODO :insert real url
         },
         action: (url) => {
-          log('Handling canvas default action')
+          debugLog('Handling canvas default action')
           HandleUI(url)
         },
       },
@@ -1462,7 +1461,7 @@
           return true // TODO :insert real url
         },
         action: (url) => {
-          log('Handling AVR default action')
+          debugLog('Handling AVR default action')
           handleAVRSite(url)
         },
       },
@@ -1477,7 +1476,7 @@
           )
         },
         action: () => {
-          log('Handling moodle quiz')
+          debugLog('Handling moodle quiz')
           handleMoodleQuiz()
         },
       },
@@ -1489,7 +1488,7 @@
           )
         },
         action: (url) => {
-          log('Handling moodle results')
+          debugLog('Handling moodle results')
           HandleMoodleResults(url)
         },
       },
@@ -1503,7 +1502,7 @@
           )
         },
         action: (url) => {
-          log('Handling moodle default action')
+          debugLog('Handling moodle default action')
           HandleUI(url)
         },
       },
@@ -1520,7 +1519,7 @@
           matcher.matchString === 'default' ||
           matcher.matchString.includes(forcedMatchString)
         ) {
-          log(`trying '${matcher.matchString}'`)
+          debugLog(`trying '${matcher.matchString}'`)
           if (matcher.testPage && matcher.testPage.match(url)) {
             matcher.testPage.action(url)
             return true
@@ -1877,7 +1876,7 @@
   //   }
   // }>
   function ShowAnswers(results) {
-    log(results)
+    debugLog(results)
     try {
       const answers = results.reduce((acc, res) => {
         const prepared = PrepareAnswers(res)
@@ -1971,9 +1970,9 @@
           sentData.subj = getCurrentSubjectName()
         } catch (e) {
           sentData.subj = 'NOSUBJ'
-          log('unable to get subject name :c')
+          debugLog('unable to get subject name :c')
         }
-        log('SENT DATA', sentData)
+        debugLog('SENT DATA', sentData)
         post('isAdding', sentData).then((res) => {
           ShowSaveQuizDialog(res.success, sentData, res.totalNewQuestions)
         })
@@ -2031,8 +2030,8 @@
         installSource: info().script.updateURL,
       })
     } catch (err) {
-      warn('Unexpected error while registering script')
-      log(err)
+      debugLog('Unexpected error while registering script')
+      debugLog(err)
     }
   }
 
@@ -2065,8 +2064,8 @@
           video.currentTime -= seekTime
         }
       } catch (err) {
-        log('Hotkey error.')
-        log(err.message)
+        debugLog('Hotkey error.')
+        debugLog(err.message)
       }
     })
     var toadd = getVideoElement()
@@ -2678,6 +2677,12 @@
     logHelper(console.log, ...arguments)
   }
 
+  function debugLog() {
+    if (isDevel) {
+      logHelper(console.log, ...arguments)
+    }
+  }
+
   function Exception(e, msg) {
     log('------------------------------------------')
     log(msg)