Daily diet of a 10-year-old girl contains the following: vitamin B1 - 1.2 mg, vitamin B2 - 0,6 mg, vitamin Ba- 1.4 mg, vitamin PP - 15 mg, vitamin C - 65 mg. Assessment of the girl's nutrition status reveals that she has cheilosis, glossitis, angular cheilitis, and conjunctivitis. The girl is likely to have: