So it’s the 2e variant from 2020, ok.
For the 2021 variant there’s a topic regarding 1.1 here … Teracube 2e 2021 not booting after e/os 1.1-r fresh install issue … could the 1.1 builds for both Teracube 2e variants simply be broken currently, @Manoj ?
Or it could be the recovery. Here’s a topic about the well-known alternative TWRP recovery on the Teracube 2e, if you’re feeling adventurous … TWRP replacement for eRecovery on Murena Teracube 2e (/e/ OS preinstalled)?