Encryption Question

I'm decently new to encryption/decryption of text, and have a question regarding certain text.

I'm given the following information:

Characters Encrypted: 0*2*45678*ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz=.

Key: 00R5Y.VVdFlboKlkMMc..MSTmNQ8Off7y6l..GG4W222RzwUmmejEDzNmmjj5ssnMcc*EAVGG*GG5dfc

I'm also given some text which is encrypted, here is a portion of it (taken from a random spot), if it would help:

6tB62LIGUe*uHWlIyy T7WR
NUwN04j5JdqV7U0Nz hiN*F
KJYKT=Lc8f6A5JrqQOBOB
lQtlRcG4**NeYlRy
ehge5lzN*CdiZe5*wwxjC
VnsVLNboMBfT2rXJ UCHLqB
AMZA4K6l2wDpK2f. HUWR7U
*2h*=aNv0YoCa0Ex tN0D

My question is - are you able to decrypt text using this Key? If so, how are you able to do this?

If you are not, what other information do you need to decrypt the text that is given to me?


Sorry if this is a foolish question, or is incorrect altogether - I'm still quite new to this.

Thanks for your help!