Harassment by money lenders

I own a travel company and have investors and lenders who have lended money to me over good will and im unable to make payments to them right now as promised and have been dragging the repayment for almost a period of 6 months due to lack of business arised because of covid . Since industry will take more time to bounce back i need more time to repay. The amount is nearly 4 cr and from different people 80% of this amount is received by cash and they are not authorised money lenders. I had to give reasons sometimes even a lie to get time. But now harassment is to such a level psychologically that im unable to do my work or even remember things, few people even sent message pf threatening to kill. As they think since i have been absconding due to not being able to take the pressure at house that i mighy have settled somewere else. I tried to file insolvency and lawyer spoke to them that agitated them more as he asked for 6 months to 1 year time and also since there is no proof of cash paymnts recvd filing a insolvency will not stop harassment as they might not even appear at court. Now i need a minimum of 3 months to maximum 1year to repay all this debt as business is not running we are trying alternate business and it needs time. How do i escape from this harassment legally? Amounts are taken from different people mostly in cash , they might have few surity cheques and promisory note, but company accnt is not operative for more than a year. How to come out of this so that i can go back to my house and start doing my work at peace. Intention is to repay but need time, how to deal this matter legally , kindly advice.