Author Correction: Variable viscosity and activation energy aspects in convection heat transfer over gravity driven solar collector plate for thermal energy storage - Nidhal Ben Khedher; Zia Ullah; Mohamed Boujelbene; O. D. Makinde; Abdullah A. Faqihi; A. F. Aljohani; Abdoalrahman S. A. Omer; Ilyas Khan (Scientific Reports)