bugs solve in ci based crm

hello need to solve some point of bugs in my crm [login to view URL] bugs point - 1. Lead tracking form data(iframe adding in the other website) is not getting recorded in view lead capture page ([login to view URL]) 2. If we add new banks, the old bank is getting disappeared in Bank accounts page 3. Expiry Date is not showing properly 4. Paypal integration is not done 5. Login is showing package and welcome page again and again 6. Add Invoice, select client should show company name. Now, it is showing person name 7. Add Invoice Item is not fetching the data 8. Add Invoice, shipping is asking to enter the amount in percentage but it is a number 9. Add Invoice, if a tax is selected, it is not calculating the price including tax 10. Add Invoice, discount is not working 11. View Invoice, generate pdf and print is not working and it is not fetching many datas properly like date, payment account details, etc., 12. Invoice, if we click $ symbol, add payment button and status is not coming 13. Top bar notification is not replaced with pending Invoice details need to be done today before 12pm only