Unable to create advertising
This is an error at Jagex's end when using the official RuneScape client. This is nothing to do with RuneMate. There is a workaround available here: Tutorial - Bypass "Unable to create advertising" error
Tutorial - Billing and Payment FAQ Free Users:
Free users are entitled to up to a maximum of 200 hours of bot usage during every 30 day period. Free users can also only run a maximum of 2 sessions at once. You may use all 200 hours on one bot on one RuneScape account, or you may split your 200 hours across multiple bots and multiple RuneScape accounts.