Problem when flashing custom recovey Moto E 2015

I have used Twrp recovery to get custom recovery. While flashing the recovery it showing like this
(bootloader) has-slot:recovery: not found
target reported max download size of 268435456 bytes
sending 'recovery' (8092 KB)...
OKAY [ 0.263s]
writing 'recovery'...
OKAY [ 0.840s]
finished. total time: 1.115s.

I want to know if someone is experiencing the same error and if they have fixed it and how. Thanks.

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