I-129 Expired but valid L1 visa

[MiniSood]

Hi,

I'm on L1 Blanket visa.


L1B Visa - Expired as of 10/2016
I-129S -Expired as of 10/2015
I-797 Blanket Petition(Issued to my Employer) - Valid indefinitely
I-94 -Expires as of 10/2016 - When i last time entered in US

I have to travel to US for my work.My I 129S(on Oct, 2015) is expired but i have valid L1 visa(till oct 2016).
Can i travel?

What is the procedure to reneweal my I129S ?
Please reply asap.