flashing ab zip to inactive slot a

Hey, mates! Anyone able to solve this? I flashed TWRP and Magisk successfully, but every time I try to flash a custom rom it gives me

Error applying update: 7 To flash additional zips, please reboot recovery to switch to the updated slot

tokyo77 slot slot: B Devices on super may not mount until rebooting recovery To flash additional zip please reboot recovery to switch to the update slot

top slot casinos online When I try to install it with twrp or orange fox then it says Flashing AB zip to inactive slot: A To flash additional zips, please reboot