When I turned on my timer, and i put my hands on it, the green light did not show. Instead, everything that could show came up, and the date, PBs (although those ones were outdated), and everything was reset. When I turned it off then back on and put my hands on it, everything glowed again and it turned off. After a few times though, it gets back to normal. Am I running out of battery, or what is the problem with my stackmat?