As the errors tell you it is caused by badly written code.
What you can do: Ask the qtranslate developer to fix these issues, file a proper bug report and add the errors to it. Then wait for an update.
As the errors tell you it is caused by badly written code.
What you can do: Ask the qtranslate developer to fix these issues, file a proper bug report and add the errors to it. Then wait for an update.