Cant open new manager

Yesterday i downloaded a new version of Manager io for mac. Once it finished, i try to open manager, the icon manager is blinked in my bar but suddenly it closed. a couple time i try this but with no luck. Can some one help me,
my mac version is 10.11.6

Did you update exactly as described by this Guide?

Hi, yes i already follow the guide, after i click open button the icon manager on my bar is suddenly disappear. I also restart my Laptop several time. Can you give me the link where i can get the old version ?

hi, can you help me where i can download the old version ?

hi, please disregard my last post. The problem is solved. So i install the old one and update using the new one.