7.6 How to solve Http failure response for (unknown url): 0 Unknown Error

Having more than 20 printers marked as favorites in Printix App may result in the Error messageHttp failure response for (unknown url): 0 Unknown Error.

RESOLUTION: Open the Printers page and reduce the number of favorite printers by selecting the solid star  to remove printer as favorite. Fix is pending development task (PP-6240).