Metamask RPC error when trying to buy tokens

[pratimasethi]

If you are reporting a problem with Token Wizard, please include the following information:

Which network did you use? (Mainnet, Kovan, Rinkeby, etc.)

Kovan

If you were able to create it, what is the URL of your crowdsale?

Your answer

Do you have screenshots showing the problem?

yes

Do you see errors in the dev console? If yes, please include a screenshot

To open the dev console in Google Chrome, press F12, or go to View -> Developer -> Developer Tools, and open the Console tab

If you see errors, please right click on them and "Save as..". Zip saved file and attach it to the Issue.
localhost-1536821440094.log.zip

[pratimasethi]

I was able to create a new crowdsale witha few changed parameters and get it working. The changes I made were to - no whitelisting, ticker symbol - was a 3 letter than a 5 letter and allow changing parmeters of the crowdsale.
It worked this time without error.
There was clearly some glitch the last time as I do not see the ILTLT token I created on the Kovan network but I do see the GNT token created in my second attempt.
I am leaving issue open for a review

[vbaranov]

@pratimasethi do you have the same problem with your created crowdsale on the main instance of Wizard (https://wizard.poa.network) ?

[mariano-aguero]

@pratimasethi
I think is something related to the truffle instalation
Could you see if this fixes the problem for you?

npm uninstall -g truffle
npm uninstall -g solc
npm install -g truffle