How do I report the data on my tax return when the Form 1099- B show the basis as being missing?

If the statement from your broker does not have the cost basis then you will have to determine the cost basis.

This link to the TurboTax help page How do I find a stock's cost basis if I don't know when it was purchased? has information that you may find useful.

Subscription to the fund were made on a monthly basis through payroll deductions, as a result I did not receive any documentation showing the number and price of the shares. As a result, the answer does not help me.  

Since these were payroll deductions you should be able to get a record of it.  Do you still work at the same company, or do you have access to their HR department.  They may be able to give you additional details.