no observations r(2000); error accures when try to run Pedroni and Westerlund cointegration tests.

[Jaeun Oh]

Hello. I keep stuck when I try to run xointegration test.

this is my data

Panel variable: id (strongly balanced)
Time variable: y, 2008q1 to 2019q4
Delta: 1 quarter


and this is my data.

It only happens when I put gdp.

I tried
gen float but didn't worked. How can I solve this problem?