i need to know if there still two years visa for...

You can apply to the Nigerian Embassy in the UAE to inquire about the matter and to obtain a visa, the following documents must be submitted:
A valid passport for at least six months after the expiration of the visa (Original & photocopies)
2 new photographs with a white background
Documents supporting the visa application
A recent bank statement for the last six months
Flight tickets
The hotel reservation for the duration of the trip
Submit documents and original papers in English with photocopies
The visa is issued within 13 working days
A personal interview is determined after submission of papers