How can I generate a TV bill in BUSY? The name of the party is going blank when I try.

To generate a E-way bill in BUSY, you need to follow the below steps:
Step 1: Ensure that e-way bill configuration is done in GST or VAT from Administrator, then Configuration, then Features or Option.
Step 2: Also, make sure that your Eway bill for print option is enabled in the Sales invoice bill print option, from Administration then Configuration then select Voucher Series Configuration, in that in the sales voucher optional filed you will required to click on the optional filed 
Step 3: Also, make sure the Voucher Series Configuration option generates e-way bill after the saving options are enabled.
Step 3: After confirming the above option, you need to go to the particular sale invoice bill, and in that, you will get the transport window. In the transport window, specify the E way bill option required, yes, and fill in the relevant information for e-way bill and E way bill generation, then click OK.
Step 4: After saving the invoice, you will get a dialogue box asking, Do you want to generate an e-way bill Click Yes. After that, select Automatic Option, and then you will find the Automatic E-way Generation Window. In that window, select relevant option Yes if required, or either skip by No.
Step 5: After that, click on the OK option. You will get the check possible error option. Click on the check possible error option in this window. If you have any invalid transaction details, it will show you in red. You need to correct that invalid data by clicking on the red entry.
Step 6: After checking for possible errors, you need to go to the Generate and Viwe E-way bill option, where you will get a summary of the invoice, check the details, and then click on the Generate E-way bill option. Your e way bill will be generated.
Step 7: After generation on the E way Bill, you will find the option to print the E way Bill. Click Yes 
Step 8: After that, your E-way bill will be printed successfully, and in the sale invoice bill print format.