How to clear the cache?

[harshjadon9]

on my ubuntu VPS, I process thousands of images through django-imagekit.

My code

class Thumbnail(ImageSpec):
        processors = [ResizeToFit(1200)]
        format = 'WEBP'
        options = {'quality': 90}

Main_image = open('path/to/image.jpg','rb')
Preview_gen = Thumbnail(source=Main_image)
Preview = Preview_gen.generate()

but after few hundred processes it stops at:

Preview = Preview_gen.generate()

but after restarting the server it works fine for the next few hundreds

maybe it's related to caching so, how to clear the cache or any other solution

Edit: now it stuck even after a reboot, so I removed that particular image from the process and it worked reset of the image were processing as normal

IDK now, I guess its a problem with that particular image or caching...