Issue in save() function

[CatarinaGA]

When i try to save a model and it give me this error:
_pickle.PicklingError: Can't pickle <function make_gradient_clipnorm_fn.. at 0x000001C94F996700>: it's not found as keras.optimizers.optimizer_v2.utils.make_gradient_clipnorm_fn..

when I specified the file extension there is no error but when I use the load() function it gives me EOFError