Please attach a survey which reproduces this error.

Can you also run "mysql --version" in the terminal? LS requires MySQL 5.5.3.

The survey is attached.

Thats the output von "mysql --version":

mysql Ver 14.14 Distrib 5.7.20, for Linux (x86_64) using EditLine wrapper

The bug in the question tree leading to "forbidden" message has been fixed, it will be in next release 3.0.3.

I still cannot reproduce your other bug. What I'm doing:

1. Fresh install of 3.0.2, new database.
2. Import survey.
3. List questions.
4. Click on overview of question.
5. Edit answer options.
6. Add one answer option.
7. Click save.
8. Everything is OK.

Did you activate the survey? Did you activate assessment mode?

No the survey isnt actived. When I try to actived assessment mode I get ther error message:

CDbCommand failed to execute the SQL statement: SQLSTATE[HY000]: General error: 1364 Field 'scope' doesn't have a default value

Also when I try to "Add one answer option" in "You need to add answer options to this question" OSSEC sends me the warning:

OSSEC HIDS Notification.

Received From: ubuntu->/var/log/apache2/access.log
Rule: 31122 fired (level 5) -> "Web server 500 error code (Internal Error)."
Src IP:
Portion of the log(s):

192.168.local.IP - - [12/Jan/2018:12:12:11 +0100] "POST /limesurvey/index.php/admin/assessments/sa/index/surveyid/557299 HTTP/1.1" 500 1528 "http://192.168.local.IP/limesurvey/index.php/admin/assessments?action=asessementactivate&surveyid=557299" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0"

I dont know if this is helpful. I tryed limesurvey creating a own mysql database set and doing it manuelly, but it doesnt make a difference.

Wrong, the OSSEC Notification came when tryed to actived assessment mode. This Notification comes when trying to add aswer options to a question:

Received From: ubuntu->/var/log/apache2/access.log
Rule: 31122 fired (level 5) -> "Web server 500 error code (Internal Error)."
Src IP: 192.168.X.X
Portion of the log(s):

192.168.X.X - - [12/Jan/2018:12:28:07 +0100] "GET /limesurvey/index.php/admin/questions/sa/answeroptions/surveyid/557299/gid/16/qid/164 HTTP/1.1" 500 1539 "http://192.168.X.X/limesurvey/index.php/admin/questions/sa/view/surveyid/557299/gid/16/qid/164" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0"

Can you run this query in your database, please?

SELECT @@GLOBAL.sql_mode;

And print the answer here.

I could reproduce this issue after updating MySQL from 5.5. to 5.6.

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=26003

mysql> SELECT @@GLOBAL.sql_mode;
+-------------------------------------------------------------------------------------------------------------------------------------------+
| @@GLOBAL.sql_mode |
+-------------------------------------------------------------------------------------------------------------------------------------------+
| ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+-------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

Oh my god, after running the command in the query its working now. Thank you so much Olle! I cant believe it! If I would know you personally I would give you a case of beer!

Version 3.0.3 released.

@pedda, well, I'd also have to give you a case of beer, because I'm the one who caused this bug when I was fixing another issue some months ago. :) Anyway, glad it's working, and thank you for reporting!