unresolved variables found: interactsh-url issue - Fuzzing Template (Payloads)

[pussycat0x]

Nuclei version:

v3.2.7

Current Behavior:

?a=: unresolved variables found: interactsh-url, {{interactsh-url}} as variable or payloads for not able to parse inside a helpers like {{url_encode(payload)}} /{{base64(payload)}}

Expected Behavior:

###Used Template:

id: variables-example
info:
  name: Variables Example
  author: pdteam
  severity: info

variables:
  test: "{{interactsh-url}}"

http:
  - pre-condition:
      - type: dsl
        dsl:
          - 'method == "GET"'
    payloads:
      payload:
        - '{{interactsh-url}}'   

    fuzzing:
      - part: query
        mode: multiple
        fuzz:
          - "{{url_encode(payload)}}"
          - "{{base64(payload)}}"

Debug Data:

                projectdiscovery.io

[VER] Started metrics server at localhost:9092
[INF] Current nuclei version: v3.2.7 (latest)
[INF] Current nuclei-templates version: v9.8.6 (latest)
[WRN] Scan results upload to cloud is disabled.
[INF] New templates added in latest release: 65
[INF] Templates loaded for current scan: 1
[WRN] Loading 1 unsigned templates for scan. Use with caution.
[INF] Targets loaded for current scan: 1
[DBG] Fuzz Filter Variables: 
        1. BaseURL => http://1fhlryksfjjllxyqpi .... yfs8s9jfa30rp.oastify.com
        2. DN => oastify
        3. FQDN => 1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com
        4. File => 
        5. Host => 1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com
        6. Hostname => 1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com
        7. Input => http://1fhlryksfjjllxyqpi .... yfs8s9jfa30rp.oastify.com
        8. Path => 
        9. Port => 80
        10. Query => ?a
        11. RDN => oastify.com
        12. RootURL => http://1fhlryksfjjllxyqpi .... yfs8s9jfa30rp.oastify.com
        13. SD => 1fhlryksfjjllxyqpiayfs8s9jfa30rp
        14. Scheme => http
        15. TLD => com
        16. baseurl => http://1fhlryksfjjllxyqpi .... yfs8s9jfa30rp.oastify.com
        17. dn => oastify
        18. file => 
        19. fqdn => 1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com
        20. host => 1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com
        21. hostname => 1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com
        22. input => http://1fhlryksfjjllxyqpi .... yfs8s9jfa30rp.oastify.com
        23. method => GET
        24. path => 
        25. port => 80
        26. query => a
        27. rdn => oastify.com
        28. rooturl => http://1fhlryksfjjllxyqpi .... yfs8s9jfa30rp.oastify.com
        29. scheme => http
        30. sd => 1fhlryksfjjllxyqpiayfs8s9jfa30rp
        31. tld => com

[INF] Using Interactsh Server: oast.me
[WRN] [variables-example] Could not make http request for http://1fhlryksfjjllxyqpiayfs8s9jfa30rp.oastify.com?a=: unresolved variables found: interactsh-url
[INF] No results found. Better luck next time!