Problem with Call n8n Wofkflow Tool

[rprada]

Hi, when I try to send variables to another sub-Ai agent, it does not work and I do not the reason.

The error message is this one:
The workflow has issues and cannot be executed for that reason. Please fix them first.

{
“errorMessage”: “The workflow has issues and cannot be executed for that reason. Please fix them first.”,
“errorDetails”: {},
“n8nDetails”: {
“time”: “26/2/2025, 15:43:07”,
“n8nVersion”: “1.79.2 (Cloud)”,
“binaryDataMode”: “filesystem”,
“cause”: {}
}
}

I attach an screenshot:

Information on my n8n setup:

• n8n version: 1.79.2
• Database (default: SQLite):
• n8n EXECUTIONS_PROCESS setting (default: own, main):
• Running n8n via n8n cloud.
• Operating system: Mac OS 14.6.1 (23G93)

[n8n]

It looks like your topic is missing some important information. Could you provide the following if applicable.

• n8n version:
• Database (default: SQLite):
• n8n EXECUTIONS_PROCESS setting (default: own, main):
• Running n8n via (Docker, npm, n8n cloud, desktop app):
• Operating system:

[solomon]

Can you share your subworkflow, please?

Copy your nodes and paste them in a code block

like this

[rprada]

One problem I have is the When Executed by Another Workflow node recieves its two strings as null. After that, I think this subworkflow crashes.

Please, check it out here:

[solomon]

Try to pin this data to your trigger and run the subworkflow, with it:

{
  "keyword":"seo para fontaneros",
   "pais":"es"
}

If it runs fine, the problem is probably a bug.
If it doesn’t, then the problem is in your subworkflow