Question: Can not use int anymore, what is wrong?

I have updated  Maple from 18.01 to 18.02, but there is something strange happened to me. I can not use int anymore. Here is my codes:

Error, (in int) wrong number (or type) of arguments: invalid option value passed to indefinite integration: {}

print(`output redirected...`); # input placeholder
    Maple 18.00, X86 64 LINUX, Feb 10 2014, Build ID 922027


Here is the screenshot:

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