A 60-year-old patient complains of pain in the masticatory muscles and temporomandibular joint. The dentures were fabricated a month ago. Objectively: face configuration is abnormal, the lower third of the face is elongated, the lips can only be closed with difficulty, the speech is indistinct. When smiling, the base of the complete removable denture is exposed. What mistakes were made during the fabrication of complete removable dentures for the upper jaw?