You need to contact Pixel Support.
In the game, open the SETTINGS menu, and clikk the SUPPORT button. In the site, ignore the white text box and scroll down. Select the GAMEPLAY category, and chose BUGS & ISSUES.
The answer of this question: 'Please take a look at the common error section - Did you find your answer there?' is NO.
Then fill the form and write what is your issue, and send your Ticket.