Brief We have modified the 'blocks/block_support.php' file after release 3.4.2 has been issued.
Description. 1. While creating a new ticket you receive the following error: Notice: Undefined variable: support_properties in /blocks/block_support.php on line 518 2. Custom option's title was not shown correctly in error message.
Further, extract the above mentioned files into the 'blocks' folder of your shop replacing an existing one. Don't forget to make a backup copy of the current file in case something goes wrong.