CopyBook Parsing Error

## Describe the bug
Getting CopyBook parsing error .

ERROR ANTLRParser: Syntax error in the copybook: Line 665:29 no viable alternative at input '01RPT-DALY-TOTL-PROM-RCRDEXTERNAL'

## Code snippet that caused the issue

```
dfFin = spark.read.format("cobol").option("copybook", "/cobrix/copybook/copybookpath.TXT")\
.load("/cobrix/data/sourcefilevariablerecordfile")
```

## Expected behavior
Parse copybook and source file and display results in DF

## Context
- Cobrix version:cobol-parser_2.12-2.6.2.jar
- Spark version:3.1.1
- Scala version:3.1.1
- Operating system:Linux

## Copybook (if possible)

02235A 01 REPORTHOLDER-DAILY-TOTAL-RECORD EXTERNAL.
02235A 05 RPT-RCRD-TYPE-ID PIC X(4).
02235A 05 RPT-RCRD-SQNC-CT PIC S9(7)V COMP-3.
05 RPT-KEY-AREA.
10 RPT-CLIENT-NUMBER PIC X(4).
06097A 10 RPT-DOR-RPT-SORT-KEY.
1.006A 15 RPT-DOR-RPT-HIERARCHY PIC X.
1.006A 15 RPT-DOR-RPT-SPA.
1.006A 20 RPT-DOR-RPT-SYSTEM PIC X(4).
1.006A 20 RPT-DOR-RPT-PRIN PIC X(4).
1.006A 20 RPT-DOR-RPT-ENTITY-3 PIC X(4).
1.006A 15 RPT-DOR-RPT-ENTITY-4 PIC 9(5).
1.006A 15 RPT-DOR-RPT-ENTITY-5 PIC 99.
1.006A 15 RPT-DOR-RPT-ENTITY-6.
1.006A 20 RPT-DOR-3-DIGIT-BOOK-CODE PIC 999.
02235A 15 FILLER PIC X(175).
10 RPT-ACCOUNT-NUMBER PIC X(8).
02235A 05 RPT-SPA.

02235A
11021A 01 RPT-DALY-TOTL-PROM-RCRD EXTERNAL PIC X(692).
02235A
02235A 01 RPT-DALY-TOTL-PROM-TABLE EXTERNAL.
02235A 05 CDT-PROM-RCRD-TYPE-ID
02235A PIC X(4).
02235A 05 CDT-PROM-RCRD-SQNC-CT PIC S9(7)V COMP-3.

Attach a small data file that can help reproduce the issue, if possible.