handles model hash cache.json error

import filelock

from modules import shared

from modules.paths import data_path

from modules.paths import data_path, script_path

cache_filename = os.path.join(data_path, "cache.json")

            if not os.path.isfile(cache_filename):

                cache_data = {}

            else:

                try:

                    with open(cache_filename, "r", encoding="utf8") as file:

                        cache_data = json.load(file)

                except Exception:

                    os.replace(cache_filename, os.path.join(script_path, "tmp", "cache.json"))

                    print('[ERROR] issue occurred while trying to read cache.json, move current cache to tmp/cache.json and create new cache')

                    cache_data = {}

    s = cache_data.get(subsection, {})

    cache_data[subsection] = s