Error parsing ssl pem file & administration ui not working

Hi, i am using local blynk server 0.18.1 when certbot certificates used it gives following error
Using data dir ‘/root/blynk/data’
11:49:04.964 ERROR - Error parsing file ‘/root/blynk/data/fullchain.pem’. Error : Unexpected character (’-’ (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: /root/blynk/data/fullchain.pem; line: 1, column: 3]
11:49:04.964 ERROR - Error parsing file ‘/root/blynk/data/privkey_pass.pem’. Error : Unexpected character (’-’ (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: /root/blynk/data/privkey_pass.pem; line: 1, column: 3]
11:49:04.964 ERROR - Error parsing file ‘/root/blynk/data/privkey.pem’. Error : Unexpected character (’-’ (code 45)) in numeric value: expected digit (0-9) to follow minus sign, for valid numeric value
at [Source: /root/blynk/data/privkey.pem; line: 1, column: 3]

Hello. Did you follow instruction on github?

Yes, I followed instructions on github.