OpenDistro Index Management

[Gustascern]

I keep getting (does not match pattern '^.*-\d+$'") error whenever I run an index policy. When I try to change the index to match the pattern, I get an error that you cant use those symbols (Invalid index name [filebeat-8.0.0-2022.02.28-//d], must not contain the following characters [ , ", *, \, <, |, ,, >, /, ?]"). So what can I do if it doesn't let me change it?