Acronis Backup: application-aware backup of SQL server fails with "Cannot open file"

Application-aware backup of an SQL server fails with:

error 0x15d0133: Failed to resolve file path 'D:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\DB name: DB.mdf'.
| line: 0xc50bc7fc06bf4841
| file: e:\354\enterprise\applications\common\src\file\path_resolving.cpp:209
| function: `anonymous-namespace'::PathResolver::Resolve
| $module: ArsDbBackupProvider_vsa64_12960
|
| error 0x15d014c: Cannot open file 'DB name: DB_Data.mdf' in directory 'D:\Program Files\Microsoft SQL Server\MSSQL12.MSSQLSERVER\MSSQL\DATA\'.
| line: 0xc50bc7fc06bf4856
| file: e:\354\enterprise\applications\common\src\file\path_resolving.cpp:230
| function: `anonymous-namespace'::PathResolver::ResolveParts
| $module: ArsDbBackupProvider_vsa64_12960