This is the 17884th most frequent Russian word.
устранены
"Eliminated" or "removed."
In this sentence, 'устранены' indicates that issues were fixed or eliminated in a passive voice construction.
Проблемы на заводе были устранены.
The problems at the factory were resolved.
'Устранены' here conveys that certain faults were corrected or removed, again in the passive voice.
После ремонта все дефекты были устранены.
After the repair, all defects were eliminated.
The word 'устранены' implies that mistakes were fixed, emphasizing the result in a perfective aspect.