Have you tried downloading the latest charts and trying this again? Another user reported something similar around the time of your original post. Or do you still see this error?
Error: template: dremio/templates/dremio-configmap.yaml:6:5: executing “dremio/templates/dremio-configmap.yaml” at <tpl (.Files.Glob “config/*”).AsConfig .>: error calling tpl: error during tpl function execution for "core-site.xml: "<?xml version=\\\"1.0\\\"?>\r\n\r\n \r\n{{- if and .Values.distStorage.type (ne .Values.distStorage.type \“local\”)\n }}\r\n \r\n {{- if eq .Values.distStorage.type\n \“aws\” }}\r\n \r\n fs.dremioS3.impl\r\n The\n FileSystem implementation. Must be set to com.dremio.plugins.s3.store.S3FileSystem\r\n\n \
Also, which version of Helm are you using?