There were 2 errors:

1) ls\tests\LSYiiValidatorsTest::testLanguageFilters
CDbException: CDbCommand failed to execute the SQL statement: SQLSTATE[22P02]: Invalid text representation: 7 ERROR:  invalid input syntax for type integer: ""
LINE 1: ...ssions.entity='surveysgroups' AND permissions.uid='')  LEFT ...
                                                             ^

/var/www/html/vendor/yiisoft/yii/framework/db/CDbCommand.php:543
/var/www/html/vendor/yiisoft/yii/framework/db/CDbCommand.php:396
/var/www/html/vendor/yiisoft/yii/framework/db/ar/CActiveRecord.php:1359
/var/www/html/application/models/LSActiveRecord.php:77
/var/www/html/vendor/yiisoft/yii/framework/db/ar/CActiveRecord.php:1478
/var/www/html/application/models/SurveysGroups.php:356
/var/www/html/application/models/Survey.php:518
/var/www/html/vendor/yiisoft/yii/framework/base/CModel.php:284
/var/www/html/vendor/yiisoft/yii/framework/base/CModel.php:260
/var/www/html/vendor/yiisoft/yii/framework/base/CModel.php:158
/var/www/html/application/models/Survey.php:969
/var/www/html/tests/unit/LSYiiValidatorsTest.php:296
/var/www/html/vendor/bin/phpunit:122

2) ls\tests\GroupHelperTest::testQuestionGroupChange
CDbException: CDbCommand failed to execute the SQL statement: SQLSTATE[42703]: Undefined column: 7 ERROR:  column "Q03" does not exist
LINE 3: WHERE (title = "Q03") AND (sid=194594)
                       ^

/var/www/html/vendor/yiisoft/yii/framework/db/CDbCommand.php:543
/var/www/html/vendor/yiisoft/yii/framework/db/CDbCommand.php:377
/var/www/html/tests/unit/helpers/GroupHelperTest.php:169
/var/www/html/vendor/bin/phpunit:122

--

There were 4 failures:

1) ls\tests\GroupHelperTest::testQuestionGroupChangeOnActiveSurvey
Apparently, the question was moved from one group to another, this should not happen in active surveys.
Failed asserting that two strings are identical.
--- Expected
+++ Actual
@@ @@
-'error'
+'success'

/var/www/html/tests/unit/helpers/GroupHelperTest.php:212
/var/www/html/vendor/bin/phpunit:122

2) ls\tests\CPDImportParticpantsTest::testParticipantWithOneAttributeImportedSucessfully
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'http://www.example.com'
+''

/var/www/html/tests/unit/helpers/remotecontrol/CPDImportParticpantsTest.php:145
/var/www/html/vendor/bin/phpunit:122

3) ls\tests\CPDImportParticpantsTest::testParticipantUpdatedSuccessfullyWhenUpdateTrue
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'http://www.example.org'
+''

/var/www/html/tests/unit/helpers/remotecontrol/CPDImportParticpantsTest.php:194
/var/www/html/vendor/bin/phpunit:122

4) ls\tests\CPDImportParticpantsTest::testParticipantWithOneEncryptedAttributeImportedSucessfully
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'123456789'
+''

/var/www/html/tests/unit/helpers/remotecontrol/CPDImportParticpantsTest.php:283
/var/www/html/vendor/bin/phpunit:122

ERRORS!
Tests: 558, Assertions: 1643, Errors: 2, Failures: 4, Skipped: 13.