What is this error?

#1

terminate called after throwing an instance of ‘std::ios_base::failure’
what(): basic_filebuf::underflow error reading the file
[Finished in 5.9s]

#2

hello @priyamthakuria27
where r u getting this error? online ide?

#3

local ide.
sublime 3

#4

try to google it.
i havent seen this error before

#5

google says, 0 results.

#6

the issue is related to ur input ,output

paste ur code , it will check