PATH label in promtail

i need to monitor windows IIS logs issue here is that i have alot of server and each IIS log is creating separate directory with separate logs inside it all of them doesn’t have static names
i tried to parse them by use below stanza
path: C:\logs**
issue here i got hit limit by loki it self saying i hit limit and i aware that it’s not good practise to use label as path but i don’t know how to set static label with muliple paths
error message that i got is as below
Too Many Requests (429): Maximum active stream limit exceeded, reduce the number of active streams (reduce labels or reduce label values),
or contact your Loki administrator to see if the limit can be increased"

any clue what is issue