Frequently get this error.
[Render] CoreAnimation: failed to allocate IOSurface (size: 1504 x 1350, format: BGRA)
Status bar could not find cached time string image. Rendering in-process.
then my app crashes every time.
currently, this occurs when trying to do the rendering. This allocates a big chunk of memory at once.
From this, it is likely this error is a memory issue. You should then check where memory is used in your application, and try to opitimize.