Ошибка: [GET] "http://127.0.0.1:8000/api/v1/articles/category/o-voprosah-i-problemah-sovremennyh-selskohozyaystvennyh-nauk-sbornik-nauchnyh-trudov-po-itogam-mezhdunarodnoy-nauchno-prakticheskoy-konferencii-2-chelyabinsk-2015-22-s": 500 Internal Server Error