All available file names are already being used

What causes this issue?

The name space for the platform-independent file name &V1& is already
occupied by existing files.

System Response

No more archive files willl be created. The archiving session has been
terminated.

How to fix this error?

You can either remove the existing files from the data carrier, or you
can change the name space for the platform-independent file names &V1&.
For client-independent file names <DS:TRAN.FILE>execute activity</>.
For client-dependent file names <DS:TRAN.FILE>execute activity</>.
At runtime, the system fills the variables "<(><<)>PARAM_1>", "
<PARAM_2>" and "<PARAM_3>" to construct a file name.
The runtime variable "<PARAM_1>" is replaced with the current
archiving object by the application ID "<(><<)>PARAM_3>". "<PARAM_2>"
represents a character between O and 9 or between A and Z. If you use
the runtime variable "<PARAM_2>", you can create up to 36 different
file names.

Error message extract from SAP system. Copyright SAP SE.