MAMP not loading

I have used duplicator to copy a live site and then upload it onto my machine to use through the local host:8888 MAMP
Everything worked fine up until the permalinks check where when I enter localhost:8888/ into my browser the page is just blank.

There was an error in the Install report which I will add below, but I don’t know what I need to do to fix said errors:

SERIALIZATION ERRORS (2)
SELECT meta_value FROM wp_postmeta WHERE meta_id = “658”;
SELECT meta_value FROM wp_postmeta WHERE meta_id = “659”;

GENERAL WARNINGS

WP-CONFIG WARNING: The wp-config.php has one or more of these values “WP_CONTENT_DIR, WP_CONTENT_URL, WPCACHEHOME, COOKIE_DOMAIN, WP_SITEURL, WP_HOME, WP_TEMP_DIR” which may cause issues please validate these values by opening the file.
MEDIA SETTINGS WARNING: The table ‘wp_options’ has at least one the following values [‘upload_url_path’,’upload_path’] set please validate settings. These settings can be changed in the wp-admin by going to Settings->Media area see ‘Uploading Files’

Any help would be greatly appreciated,
Fi xx