Here is the simplest solution if showing version name in css path

like : pub/static/version323334/

then run this query in mysql
INSERT INTO core_config_data (path, value) VALUES (‘dev/static/sign’, 0)
ON DUPLICATE KEY UPDATE value = 0;

after that clear the config cache

 bin/magento cache:clean config

Second solution 

Run query in database : INSERT INTO core_config_data (scope, scope_id, path, value) VALUES (‘default’, 0, ‘dev/static/sign’, ‘0’);

Third Solutions

php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy