Dont like

Spended a so much time to change css relevant for my site… so much time to created links and avatars in front end…after i returned for work under site (few mounth i only visited site and update plugins) – i find that many things broken…
its hell. Realy. every time i want to edit page with shortcode – i have message that site not work. Only if i delete page with shortcode or disable plugin – all works fine…i dont want to search whats exactly happening.. so i started search alternatives