I want to enable E-way billing in BUSY but am getting errors. What could be the reasons for this?

To enable E-way billing in BUSY but you getting errors, follow the below steps to remove the error and know the reasons: 
 Step 1: To generate an e-way bill in BUSY, you need to configure e-way from Administrator, then Configuration, then Features or Option, then select GST or VAT and enable the e-way bill required as Yes, then click on the configuration window and enter the necessary relevant details, such as the place, pin code, etc. 
 Step 2: After that, click on GSP configuration, then select the option for GSP for e-way bills and e-invoices, then enter Webtel and Pinnacle's user ID and password, and click on the validate option to validate the credential. 
 Step 3: For this, you need to generate the webtel and pinnacle's ID and password. You need to generate them from the E-way bill portal. Login to https://ewaybillgst.gov.in/, then click on login and enter the E-way bill login and password. After logging in to the page, you will find the Registration option, then click on For GSP and send the OTP, and then verify the OTP and create the user for webtel and pinnacle. 
 Step 2: Also, make sure the Voucher Series Configuration option generates an e-way bill after the saving option is enabled. 
 By following the above steps, you will be able to enable your e-way bill in BUSY.