Storage running out

i install the flyme 6.7.4.25 beeta in meziu m2 . after sucessfully installation  , after some time get a pop up massage “storage running out” i have no any app insatalled ,there is only pre installed app. And also i am not able to install any app.when i try reinstall the frimware ,the notification is still come . When i try upgrade to another version of frimware it show “could not get file info” . I tierd to factory reset with internal storage too many time , nothing happen,the problem is still occured. please help.......

My phone has same problem please solve this problem…

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