Not a readable file
You tried to include an Aneamal file with
[a]->. But the given file path does not point to a readable file.
Make sure the file exists and the permission settings grant the ability to read the file. You might also need to check its directory’s and parent directories’ permissions.
If you did not mean to include an Aneamal file but wanted to use a regular link with
[a] as link text, you can enclose the link text in backticks
`[a]`-> or escape the file inclusion behavior with a backslash: